diff --git a/src/components/DecodeViewer.tsx b/src/components/DecodeViewer.tsx
index 2e24c90e..9bf1d70 100644
--- a/src/components/DecodeViewer.tsx
+++ b/src/components/DecodeViewer.tsx
@@ -7,6 +7,7 @@ import {
   type DecodedData,
 } from "@/lib/decode-parser";
 import { useGrimoire } from "@/core/state";
+import { useCopy } from "../hooks/useCopy";
 import { Button } from "./ui/button";
 import { Input } from "./ui/input";
 
@@ -16,7 +17,7 @@ interface DecodeViewerProps {
 
 export default function DecodeViewer({ args }: DecodeViewerProps) {
   const { addWindow } = useGrimoire();
-  const [copied, setCopied] = useState(false);
+  const { copy, copied } = useCopy();
   const [relays, setRelays] = useState<string[]>([]);
   const [newRelay, setNewRelay] = useState("");
   const [error, setError] = useState<string | null>(null);
@@ -56,9 +57,7 @@ export default function DecodeViewer({ args }: DecodeViewerProps) {
 
   const copyToClipboard = () => {
     if (reencoded) {
-      navigator.clipboard.writeText(reencoded);
-      setCopied(true);
-      setTimeout(() => setCopied(false), 2000);
+      copy(reencoded);
     }
   };
 
diff --git a/src/components/EncodeViewer.tsx b/src/components/EncodeViewer.tsx
index 6847ef0..0b2d393 100644
--- a/src/components/EncodeViewer.tsx
+++ b/src/components/EncodeViewer.tsx
@@ -5,6 +5,7 @@ import {
   encodeToNostr,
   type ParsedEncodeCommand,
 } from "@/lib/encode-parser";
+import { useCopy } from "../hooks/useCopy";
 import { Button } from "./ui/button";
 import { Input } from "./ui/input";
 
@@ -13,7 +14,7 @@ interface EncodeViewerProps {
 }
 
 export default function EncodeViewer({ args }: EncodeViewerProps) {
-  const [copied, setCopied] = useState(false);
+  const { copy, copied } = useCopy();
   const [relays, setRelays] = useState<string[]>([]);
   const [newRelay, setNewRelay] = useState("");
   const [error, setError] = useState<string | null>(null);
@@ -46,9 +47,7 @@ export default function EncodeViewer({ args }: EncodeViewerProps) {
 
   const copyToClipboard = () => {
     if (encoded) {
-      navigator.clipboard.writeText(encoded);
-      setCopied(true);
-      setTimeout(() => setCopied(false), 2000);
+      copy(encoded);
     }
   };
 
diff --git a/src/components/EventDetailViewer.tsx b/src/components/EventDetailViewer.tsx
index c02c1e9..d9b58e9 100644
--- a/src/components/EventDetailViewer.tsx
+++ b/src/components/EventDetailViewer.tsx
@@ -9,6 +9,7 @@ import { Kind9802DetailRenderer } from "./nostr/kinds/Kind9802DetailRenderer";
 import { KindBadge } from "./KindBadge";
 import {
   Copy,
+  Check,
   ChevronDown,
   ChevronRight,
   FileJson,
@@ -16,6 +17,7 @@ import {
   Circle,
 } from "lucide-react";
 import { nip19 } from "nostr-tools";
+import { useCopy } from "../hooks/useCopy";
 import { getSeenRelays } from "applesauce-core/helpers/relays";
 
 export interface EventDetailViewerProps {
@@ -40,10 +42,7 @@ export function EventDetailViewer({ pointer }: EventDetailViewerProps) {
     );
   }
 
-  // Helper to copy to clipboard
-  const copyToClipboard = (text: string) => {
-    navigator.clipboard.writeText(text);
-  };
+  const { copy, copied } = useCopy();
 
   // Get relays this event was seen on using applesauce
   const seenRelaysSet = getSeenRelays(event);
@@ -79,11 +78,15 @@ export function EventDetailViewer({ pointer }: EventDetailViewerProps) {
       <div className="border-b border-border px-4 py-2 font-mono text-xs flex items-center justify-between gap-3">
         {/* Left: Event ID */}
         <button
-          onClick={() => copyToClipboard(bech32Id)}
+          onClick={() => copy(bech32Id)}
           className="flex items-center gap-1 text-muted-foreground hover:text-foreground transition-colors truncate min-w-0"
           title={bech32Id}
         >
-          <Copy className="size-3 flex-shrink-0" />
+          {copied ? (
+            <Check className="size-3 flex-shrink-0 text-green-500" />
+          ) : (
+            <Copy className="size-3 flex-shrink-0" />
+          )}
           <code className="truncate">
             {bech32Id.slice(0, 16)}...{bech32Id.slice(-8)}
           </code>
@@ -151,11 +154,15 @@ export function EventDetailViewer({ pointer }: EventDetailViewerProps) {
         <div className="border-b border-border px-4 py-2 bg-muted">
           <div className="flex justify-end mb-2">
             <button
-              onClick={() => copyToClipboard(JSON.stringify(event, null, 2))}
+              onClick={() => copy(JSON.stringify(event, null, 2))}
               className="hover:text-foreground text-muted-foreground transition-colors text-xs flex items-center gap-1"
             >
-              <Copy className="size-3" />
-              Copy JSON
+              {copied ? (
+                <Check className="size-3 text-green-500" />
+              ) : (
+                <Copy className="size-3" />
+              )}
+              {copied ? "Copied!" : "Copy JSON"}
             </button>
           </div>
           <pre className="text-xs overflow-x-auto whitespace-pre-wrap break-words bg-background p-2 rounded border border-border font-mono">
diff --git a/src/components/Home.tsx b/src/components/Home.tsx
index 9856543..3acaf07 100644
--- a/src/components/Home.tsx
+++ b/src/components/Home.tsx
@@ -14,6 +14,7 @@ import { EventDetailViewer } from "./EventDetailViewer";
 import { ProfileViewer } from "./ProfileViewer";
 import EncodeViewer from "./EncodeViewer";
 import DecodeViewer from "./DecodeViewer";
+import { RelayViewer } from "./RelayViewer";
 import KindRenderer from "./KindRenderer";
 import { Terminal } from "lucide-react";
 import UserMenu from "./nostr/user-menu";
diff --git a/src/components/JsonViewer.tsx b/src/components/JsonViewer.tsx
index d34670a..1b05622 100644
--- a/src/components/JsonViewer.tsx
+++ b/src/components/JsonViewer.tsx
@@ -7,6 +7,7 @@ import {
   DialogTitle,
 } from "@/components/ui/dialog";
 import { Button } from "@/components/ui/button";
+import { useCopy } from "../hooks/useCopy";
 
 interface JsonViewerProps {
   data: any;
@@ -21,14 +22,12 @@ export function JsonViewer({
   onOpenChange,
   title = "Raw JSON",
 }: JsonViewerProps) {
-  const [copied, setCopied] = useState(false);
+  const { copy, copied } = useCopy();
 
   const jsonString = JSON.stringify(data, null, 2);
 
   const handleCopy = () => {
-    navigator.clipboard.writeText(jsonString);
-    setCopied(true);
-    setTimeout(() => setCopied(false), 2000);
+    copy(jsonString);
   };
 
   return (
diff --git a/src/components/ProfileViewer.tsx b/src/components/ProfileViewer.tsx
index ddf4475..e8e564f 100644
--- a/src/components/ProfileViewer.tsx
+++ b/src/components/ProfileViewer.tsx
@@ -4,6 +4,7 @@ import { UserName } from "./nostr/UserName";
 import Nip05 from "./nostr/nip05";
 import {
   Copy,
+  Check,
   ChevronDown,
   ChevronRight,
   User as UserIcon,
@@ -14,6 +15,7 @@ import {
 import { kinds, nip19 } from "nostr-tools";
 import { useEventStore, useObservableMemo } from "applesauce-react/hooks";
 import { getInboxes, getOutboxes } from "applesauce-core/helpers/mailboxes";
+import { useCopy } from "../hooks/useCopy";
 import { RichText } from "./nostr/RichText";
 
 export interface ProfileViewerProps {
@@ -46,10 +48,7 @@ export function ProfileViewer({ pubkey }: ProfileViewerProps) {
     [eventStore, pubkey],
   );
 
-  // Helper to copy to clipboard
-  const copyToClipboard = (text: string) => {
-    navigator.clipboard.writeText(text);
-  };
+  const { copy, copied } = useCopy();
 
   // Combine all relays (inbox + outbox) for nprofile
   const allRelays = [...new Set([...inboxRelays, ...outboxRelays])];
@@ -69,11 +68,15 @@ export function ProfileViewer({ pubkey }: ProfileViewerProps) {
       <div className="border-b border-border px-4 py-2 font-mono text-xs flex items-center justify-between gap-3">
         {/* Left: npub/nprofile */}
         <button
-          onClick={() => copyToClipboard(identifier)}
+          onClick={() => copy(identifier)}
           className="flex items-center gap-1 text-muted-foreground hover:text-foreground transition-colors truncate min-w-0"
           title={identifier}
         >
-          <Copy className="size-3 flex-shrink-0" />
+          {copied ? (
+            <Check className="size-3 flex-shrink-0 text-green-500" />
+          ) : (
+            <Copy className="size-3 flex-shrink-0" />
+          )}
           <code className="truncate">
             {identifier.slice(0, 16)}...{identifier.slice(-8)}
           </code>
@@ -180,7 +183,10 @@ export function ProfileViewer({ pubkey }: ProfileViewerProps) {
           <div className="flex flex-col gap-4 max-w-2xl">
             <div className="flex flex-col gap-0">
               {/* Display Name */}
-              <UserName pubkey={pubkey} className="text-2xl font-bold" />
+              <UserName
+                pubkey={pubkey}
+                className="text-2xl font-bold pointer-events-none"
+              />
               {/* NIP-05 */}
               {profile.nip05 && (
                 <div className="text-xs text-muted-foreground">
diff --git a/src/components/nostr/kinds/BaseEventRenderer.tsx b/src/components/nostr/kinds/BaseEventRenderer.tsx
index 8167b1f..e6221ea 100644
--- a/src/components/nostr/kinds/BaseEventRenderer.tsx
+++ b/src/components/nostr/kinds/BaseEventRenderer.tsx
@@ -10,8 +10,9 @@ import {
   DropdownMenuSeparator,
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
-import { Menu, Copy, FileJson, ExternalLink } from "lucide-react";
+import { Menu, Copy, Check, FileJson, ExternalLink } from "lucide-react";
 import { useGrimoire } from "@/core/state";
+import { useCopy } from "@/hooks/useCopy";
 import { JsonViewer } from "@/components/JsonViewer";
 import { formatTimestamp } from "@/hooks/useLocale";
 
@@ -42,6 +43,7 @@ export function EventAuthor({ pubkey }: { pubkey: string }) {
  */
 export function EventMenu({ event }: { event: NostrEvent }) {
   const { addWindow } = useGrimoire();
+  const { copy, copied } = useCopy();
   const [jsonDialogOpen, setJsonDialogOpen] = useState(false);
 
   const openEventDetail = () => {
@@ -71,7 +73,7 @@ export function EventMenu({ event }: { event: NostrEvent }) {
   };
 
   const copyEventId = () => {
-    navigator.clipboard.writeText(event.id);
+    copy(event.id);
   };
 
   const viewEventJson = () => {
@@ -104,8 +106,12 @@ export function EventMenu({ event }: { event: NostrEvent }) {
         </DropdownMenuItem>
         <DropdownMenuSeparator />
         <DropdownMenuItem onClick={copyEventId}>
-          <Copy className="size-4 mr-2" />
-          Copy ID
+          {copied ? (
+            <Check className="size-4 mr-2 text-green-500" />
+          ) : (
+            <Copy className="size-4 mr-2" />
+          )}
+          {copied ? "Copied!" : "Copy ID"}
         </DropdownMenuItem>
         <DropdownMenuItem onClick={viewEventJson}>
           <FileJson className="size-4 mr-2" />
@@ -139,10 +145,18 @@ export function BaseEventContainer({
 }) {
   // Format relative time for display
   const { locale } = useGrimoire();
-  const relativeTime = formatTimestamp(event.created_at, "relative", locale.locale);
+  const relativeTime = formatTimestamp(
+    event.created_at,
+    "relative",
+    locale.locale,
+  );
 
   // Format absolute timestamp for hover (ISO-8601 style)
-  const absoluteTime = formatTimestamp(event.created_at, "absolute", locale.locale);
+  const absoluteTime = formatTimestamp(
+    event.created_at,
+    "absolute",
+    locale.locale,
+  );
 
   return (
     <div className="flex flex-col gap-2 p-3 border-b border-border/50 last:border-0">
diff --git a/src/hooks/useCopy.ts b/src/hooks/useCopy.ts
new file mode 100644
index 0000000..32a9ec0
--- /dev/null
+++ b/src/hooks/useCopy.ts
@@ -0,0 +1,45 @@
+import { useState, useCallback, useRef, useEffect } from "react";
+
+/**
+ * Hook for copying text to clipboard with temporary "copied" state
+ * @param timeout - Duration in ms to show "copied" state (default: 3000)
+ * @returns Object with copy function and copied state
+ */
+export function useCopy(timeout = 3000) {
+  const [copied, setCopied] = useState(false);
+  const timeoutRef = useRef<NodeJS.Timeout | undefined>(undefined);
+
+  // Clear timeout on unmount
+  useEffect(() => {
+    return () => {
+      if (timeoutRef.current) {
+        clearTimeout(timeoutRef.current);
+      }
+    };
+  }, []);
+
+  const copy = useCallback(
+    async (text: string) => {
+      try {
+        await navigator.clipboard.writeText(text);
+        setCopied(true);
+
+        // Clear existing timeout
+        if (timeoutRef.current) {
+          clearTimeout(timeoutRef.current);
+        }
+
+        // Set new timeout to reset copied state
+        timeoutRef.current = setTimeout(() => {
+          setCopied(false);
+        }, timeout);
+      } catch (error) {
+        console.error("Failed to copy to clipboard:", error);
+        setCopied(false);
+      }
+    },
+    [timeout]
+  );
+
+  return { copy, copied };
+}
diff --git a/src/lib/encode-parser.ts b/src/lib/encode-parser.ts
index 9d61f22..299a1a2 100644
--- a/src/lib/encode-parser.ts
+++ b/src/lib/encode-parser.ts
@@ -1,4 +1,5 @@
 import { nip19 } from "nostr-tools";
+import { isValidHexEventId, isValidHexPubkey } from "./nostr-validation";
 
 export type EncodeType = "npub" | "note" | "nevent" | "nprofile" | "naddr";
 
@@ -88,24 +89,24 @@ function validateEncodeInput(
   relays: string[],
   author?: string,
 ) {
-  // Validate hex strings are 64 characters
+  // Validate hex strings
   if (type === "npub" || type === "nprofile") {
-    if (!/^[0-9a-f]{64}$/i.test(value)) {
+    if (!isValidHexPubkey(value)) {
       throw new Error("Pubkey must be 64-character hex string");
     }
   }
 
   if (type === "note") {
-    if (!/^[0-9a-f]{64}$/i.test(value)) {
+    if (!isValidHexEventId(value)) {
       throw new Error("Event ID must be 64-character hex string");
     }
   }
 
   if (type === "nevent") {
-    if (!/^[0-9a-f]{64}$/i.test(value)) {
+    if (!isValidHexEventId(value)) {
       throw new Error("Event ID must be 64-character hex string");
     }
-    if (author && !/^[0-9a-f]{64}$/i.test(author)) {
+    if (author && !isValidHexPubkey(author)) {
       throw new Error("Author pubkey must be 64-character hex string");
     }
   }
@@ -121,7 +122,7 @@ function validateEncodeInput(
     if (isNaN(kind)) {
       throw new Error("Kind must be a number");
     }
-    if (!/^[0-9a-f]{64}$/i.test(pubkey)) {
+    if (!isValidHexPubkey(pubkey)) {
       throw new Error("Pubkey must be 64-character hex string");
     }
   }
diff --git a/src/lib/nip05.ts b/src/lib/nip05.ts
index d364ac6..2509a2b 100644
--- a/src/lib/nip05.ts
+++ b/src/lib/nip05.ts
@@ -3,43 +3,80 @@ import { queryProfile } from "nostr-tools/nip05";
 /**
  * NIP-05 Identifier Resolution
  * Resolves user@domain identifiers to Nostr pubkeys using nostr-tools
+ *
+ * Supports both formats:
+ * - user@domain.com
+ * - domain.com (normalized to _@domain.com)
  */
 
 /**
- * Check if a string looks like a NIP-05 identifier (user@domain)
+ * Check if a string looks like a NIP-05 identifier
+ * Accepts both user@domain and bare domain formats
  */
 export function isNip05(value: string): boolean {
   if (!value) return false;
-  // Must match user@domain format
-  return /^[a-zA-Z0-9._-]+@[a-zA-Z0-9][\w.-]+\.[a-zA-Z]{2,}$/.test(value);
+
+  // Match user@domain format
+  const userAtDomain = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9][\w.-]+\.[a-zA-Z]{2,}$/.test(value);
+
+  // Match bare domain format (domain.com -> _@domain.com)
+  const bareDomain = /^[a-zA-Z0-9][\w.-]+\.[a-zA-Z]{2,}$/.test(value);
+
+  return userAtDomain || bareDomain;
+}
+
+/**
+ * Normalize a NIP-05 identifier
+ * Converts bare domains to the _@domain format
+ * @param value - NIP-05 identifier or bare domain
+ * @returns Normalized identifier with @
+ */
+export function normalizeNip05(value: string): string {
+  if (!value) return value;
+
+  // Already in user@domain format
+  if (value.includes("@")) {
+    return value;
+  }
+
+  // Bare domain -> _@domain
+  if (/^[a-zA-Z0-9][\w.-]+\.[a-zA-Z]{2,}$/.test(value)) {
+    return `_@${value}`;
+  }
+
+  return value;
 }
 
 /**
  * Resolve a NIP-05 identifier to a pubkey using nostr-tools
- * @param nip05 - The NIP-05 identifier (user@domain or _@domain)
+ * @param nip05 - The NIP-05 identifier (user@domain, domain.com, or _@domain)
  * @returns The hex pubkey or null if resolution fails
  */
 export async function resolveNip05(nip05: string): Promise<string | null> {
   if (!isNip05(nip05)) return null;
 
+  // Normalize bare domains to _@domain
+  const normalized = normalizeNip05(nip05);
+
   try {
-    const profile = await queryProfile(nip05);
+    const profile = await queryProfile(normalized);
 
     if (!profile?.pubkey) {
-      console.warn(`NIP-05: No pubkey found for ${nip05}`);
+      console.warn(`NIP-05: No pubkey found for ${normalized}`);
       return null;
     }
 
-    console.log(`NIP-05: Resolved ${nip05} → ${profile.pubkey}`);
+    console.log(`NIP-05: Resolved ${nip05} → ${normalized} → ${profile.pubkey}`);
     return profile.pubkey.toLowerCase();
   } catch (error) {
-    console.warn(`NIP-05: Resolution failed for ${nip05}:`, error);
+    console.warn(`NIP-05: Resolution failed for ${normalized}:`, error);
     return null;
   }
 }
 
 /**
  * Resolve multiple NIP-05 identifiers in parallel
+ * Automatically normalizes bare domains to _@domain format
  */
 export async function resolveNip05Batch(
   identifiers: string[],
@@ -50,6 +87,7 @@ export async function resolveNip05Batch(
     identifiers.map(async (nip05) => {
       const pubkey = await resolveNip05(nip05);
       if (pubkey) {
+        // Store with original identifier as key
         results.set(nip05, pubkey);
       }
     }),
diff --git a/src/lib/open-parser.ts b/src/lib/open-parser.ts
index ade3130..35395ea 100644
--- a/src/lib/open-parser.ts
+++ b/src/lib/open-parser.ts
@@ -1,4 +1,5 @@
 import { nip19 } from "nostr-tools";
+import { isValidHexEventId, isValidHexPubkey, normalizeHex } from "./nostr-validation";
 
 // Define pointer types locally since they're not exported from nostr-tools
 export interface EventPointer {
@@ -70,11 +71,11 @@ export function parseOpenCommand(args: string[]): ParsedOpenCommand {
     }
   }
 
-  // Check if it's a hex event ID (64 chars, hex only)
-  if (/^[0-9a-f]{64}$/i.test(identifier)) {
+  // Check if it's a hex event ID
+  if (isValidHexEventId(identifier)) {
     return {
       pointer: {
-        id: identifier.toLowerCase(),
+        id: normalizeHex(identifier),
       },
     };
   }
@@ -92,14 +93,14 @@ export function parseOpenCommand(args: string[]): ParsedOpenCommand {
         throw new Error("Invalid address format: kind must be a number");
       }
 
-      if (!/^[0-9a-f]{64}$/i.test(pubkey)) {
+      if (!isValidHexPubkey(pubkey)) {
         throw new Error("Invalid address format: pubkey must be 64 hex chars");
       }
 
       return {
         pointer: {
           kind,
-          pubkey: pubkey.toLowerCase(),
+          pubkey: normalizeHex(pubkey),
           identifier: dTag,
         },
       };
diff --git a/src/lib/profile-parser.ts b/src/lib/profile-parser.ts
index 394fd88..525cb6b 100644
--- a/src/lib/profile-parser.ts
+++ b/src/lib/profile-parser.ts
@@ -1,4 +1,6 @@
 import { nip19 } from "nostr-tools";
+import { isNip05, resolveNip05 } from "./nip05";
+import { isValidHexPubkey, normalizeHex } from "./nostr-validation";
 
 export interface ParsedProfileCommand {
   pubkey: string;
@@ -10,9 +12,12 @@ export interface ParsedProfileCommand {
  * - npub1... (bech32 npub)
  * - nprofile1... (bech32 nprofile with relay hints)
  * - abc123... (64-char hex pubkey)
- * - nip05@domain.com (NIP-05 identifier - not implemented yet)
+ * - user@domain.com (NIP-05 identifier)
+ * - domain.com (bare domain, resolved as _@domain.com)
  */
-export function parseProfileCommand(args: string[]): ParsedProfileCommand {
+export async function parseProfileCommand(
+  args: string[],
+): Promise<ParsedProfileCommand> {
   const identifier = args[0];
 
   if (!identifier) {
@@ -42,21 +47,25 @@ export function parseProfileCommand(args: string[]): ParsedProfileCommand {
     }
   }
 
-  // Check if it's a hex pubkey (64 chars, hex only)
-  if (/^[0-9a-f]{64}$/i.test(identifier)) {
+  // Check if it's a hex pubkey
+  if (isValidHexPubkey(identifier)) {
     return {
-      pubkey: identifier.toLowerCase(),
+      pubkey: normalizeHex(identifier),
     };
   }
 
   // Check if it's a NIP-05 identifier (user@domain.com)
-  if (identifier.includes("@")) {
-    throw new Error(
-      "NIP-05 identifier lookup not yet implemented. Please use npub or hex pubkey.",
-    );
+  if (isNip05(identifier)) {
+    const pubkey = await resolveNip05(identifier);
+    if (!pubkey) {
+      throw new Error(
+        `Failed to resolve NIP-05 identifier: ${identifier}. Please check the identifier and try again.`,
+      );
+    }
+    return { pubkey };
   }
 
   throw new Error(
-    "Invalid user identifier. Supported formats: npub1..., nprofile1..., or hex pubkey",
+    "Invalid user identifier. Supported formats: npub1..., nprofile1..., hex pubkey, user@domain.com, or domain.com",
   );
 }
diff --git a/src/lib/req-parser.ts b/src/lib/req-parser.ts
index f62c50e..f76061c 100644
--- a/src/lib/req-parser.ts
+++ b/src/lib/req-parser.ts
@@ -1,6 +1,7 @@
 import { nip19 } from "nostr-tools";
 import type { NostrFilter } from "@/types/nostr";
 import { isNip05 } from "./nip05";
+import { isValidHexPubkey, isValidHexEventId, normalizeHex } from "./nostr-validation";
 
 export interface ParsedReqCommand {
   filter: NostrFilter;
@@ -268,9 +269,9 @@ function parseNpubOrHex(value: string): string | null {
     }
   }
 
-  // Check if it's hex (64 chars, hex characters)
-  if (/^[0-9a-f]{64}$/i.test(value)) {
-    return value.toLowerCase();
+  // Check if it's hex pubkey
+  if (isValidHexPubkey(value)) {
+    return normalizeHex(value);
   }
 
   return null;
@@ -294,9 +295,9 @@ function parseNoteOrHex(value: string): string | null {
     }
   }
 
-  // Check if it's hex (64 chars, hex characters)
-  if (/^[0-9a-f]{64}$/i.test(value)) {
-    return value.toLowerCase();
+  // Check if it's hex event ID
+  if (isValidHexEventId(value)) {
+    return normalizeHex(value);
   }
 
   return null;
diff --git a/src/types/man.ts b/src/types/man.ts
index 02e1b17..d9f4541 100644
--- a/src/types/man.ts
+++ b/src/types/man.ts
@@ -123,7 +123,7 @@ export const manPages: Record<string, ManPageEntry> = {
       {
         flag: "-a, --author <npub|hex|nip05>",
         description:
-          "Filter by author pubkey (supports npub, hex, or NIP-05 identifier like user@domain.com)",
+          "Filter by author pubkey (supports npub, hex, NIP-05 identifier, or bare domain)",
       },
       {
         flag: "-l, --limit <number>",
@@ -136,7 +136,7 @@ export const manPages: Record<string, ManPageEntry> = {
       {
         flag: "-p <npub|hex|nip05>",
         description:
-          "Filter by mentioned pubkey (#p tag, supports npub, hex, or NIP-05 identifier)",
+          "Filter by mentioned pubkey (#p tag, supports npub, hex, NIP-05, or bare domain)",
       },
       {
         flag: "-t <hashtag>",
@@ -175,6 +175,7 @@ export const manPages: Record<string, ManPageEntry> = {
       "req -k 1 -l 20                      Get 20 recent notes (streams live by default)",
       "req -k 0 -a npub1...                 Get profile for author",
       "req -k 1 -a user@domain.com          Get notes from NIP-05 identifier",
+      "req -k 1 -a dergigi.com              Get notes from bare domain (resolves to _@dergigi.com)",
       "req -k 1 -p verbiricha@habla.news    Get notes mentioning NIP-05 user",
       "req -k 1 --since 1h relay.damus.io   Get notes from last hour",
       "req -k 1 --close-on-eose             Get recent notes and close after EOSE",
@@ -261,7 +262,7 @@ export const manPages: Record<string, ManPageEntry> = {
     section: "1",
     synopsis: "profile <identifier>",
     description:
-      "Open a detailed view of a Nostr user profile. Accepts multiple identifier formats including npub, nprofile, and hex pubkeys. Displays profile metadata, inbox/outbox relays, and raw JSON.",
+      "Open a detailed view of a Nostr user profile. Accepts multiple identifier formats including npub, nprofile, hex pubkeys, and NIP-05 identifiers (including bare domains). Displays profile metadata, inbox/outbox relays, and raw JSON.",
     options: [
       {
         flag: "<identifier>",
@@ -272,12 +273,15 @@ export const manPages: Record<string, ManPageEntry> = {
       "profile npub1abc...                   Open profile by npub",
       "profile nprofile1xyz...               Open profile with relay hints",
       "profile abc123...                     Open profile by hex pubkey (64 chars)",
+      "profile user@domain.com               Open profile by NIP-05 identifier",
+      "profile jack@cash.app                 Open profile using NIP-05",
+      "profile dergigi.com                   Open profile by domain (resolves to _@dergigi.com)",
     ],
     seeAlso: ["open", "req"],
     appId: "profile",
     category: "Nostr",
-    argParser: (args: string[]) => {
-      const parsed = parseProfileCommand(args);
+    argParser: async (args: string[]) => {
+      const parsed = await parseProfileCommand(args);
       return parsed;
     },
   },
@@ -345,4 +349,30 @@ export const manPages: Record<string, ManPageEntry> = {
       return { args };
     },
   },
+  relay: {
+    name: "relay",
+    section: "1",
+    synopsis: "relay <url>",
+    description:
+      "View detailed information about a Nostr relay. Displays NIP-11 relay information document including connection status, supported NIPs, operator details, limitations, and software information.",
+    options: [
+      {
+        flag: "<url>",
+        description:
+          "Relay WebSocket URL (wss:// or ws://) or domain (auto-adds wss://)",
+      },
+    ],
+    examples: [
+      "relay wss://relay.damus.io           View relay information",
+      "relay relay.primal.net               Auto-adds wss:// protocol",
+      "relay nos.lol                        View relay capabilities",
+    ],
+    seeAlso: ["req", "profile"],
+    appId: "relay",
+    category: "Nostr",
+    argParser: (args: string[]) => {
+      const parsed = parseRelayCommand(args);
+      return parsed;
+    },
+  },
 };
diff --git a/tsconfig.app.tsbuildinfo b/tsconfig.app.tsbuildinfo
index 0b65815..c0e145c 100644
--- a/tsconfig.app.tsbuildinfo
+++ b/tsconfig.app.tsbuildinfo
@@ -1 +1 @@
-{"root":["./src/main.tsx","./src/root.tsx","./src/vite-env.d.ts","./src/components/command.tsx","./src/components/commandlauncher.tsx","./src/components/decodeviewer.tsx","./src/components/encodeviewer.tsx","./src/components/eventdetailviewer.tsx","./src/components/grimoirewelcome.tsx","./src/components/home.tsx","./src/components/jsonviewer.tsx","./src/components/kindbadge.tsx","./src/components/kindrenderer.tsx","./src/components/manpage.tsx","./src/components/markdown.tsx","./src/components/niprenderer.tsx","./src/components/profileviewer.tsx","./src/components/reqviewer.tsx","./src/components/tabbar.tsx","./src/components/timestamp.tsx","./src/components/winviewer.tsx","./src/components/windowtoolbar.tsx","./src/components/nostr/embeddedevent.tsx","./src/components/nostr/feed.tsx","./src/components/nostr/mediadialog.tsx","./src/components/nostr/mediaembed.tsx","./src/components/nostr/quotedevent.tsx","./src/components/nostr/richtext.tsx","./src/components/nostr/username.tsx","./src/components/nostr/index.ts","./src/components/nostr/nip05.tsx","./src/components/nostr/npub.tsx","./src/components/nostr/relay-pool.tsx","./src/components/nostr/user-menu.tsx","./src/components/nostr/linkpreview/audiolink.tsx","./src/components/nostr/linkpreview/imagelink.tsx","./src/components/nostr/linkpreview/plainlink.tsx","./src/components/nostr/linkpreview/videolink.tsx","./src/components/nostr/linkpreview/index.ts","./src/components/nostr/richtext/emoji.tsx","./src/components/nostr/richtext/eventembed.tsx","./src/components/nostr/richtext/gallery.tsx","./src/components/nostr/richtext/hashtag.tsx","./src/components/nostr/richtext/link.tsx","./src/components/nostr/richtext/mention.tsx","./src/components/nostr/richtext/text.tsx","./src/components/nostr/richtext/index.ts","./src/components/nostr/kinds/baseeventrenderer.tsx","./src/components/nostr/kinds/kind0detailrenderer.tsx","./src/components/nostr/kinds/kind0renderer.tsx","./src/components/nostr/kinds/kind1063renderer.tsx","./src/components/nostr/kinds/kind1renderer.tsx","./src/components/nostr/kinds/kind20renderer.tsx","./src/components/nostr/kinds/kind21renderer.tsx","./src/components/nostr/kinds/kind22renderer.tsx","./src/components/nostr/kinds/kind30023detailrenderer.tsx","./src/components/nostr/kinds/kind30023renderer.tsx","./src/components/nostr/kinds/kind3renderer.tsx","./src/components/nostr/kinds/kind6renderer.tsx","./src/components/nostr/kinds/kind7renderer.tsx","./src/components/nostr/kinds/kind9735renderer.tsx","./src/components/nostr/kinds/kind9802detailrenderer.tsx","./src/components/nostr/kinds/kind9802renderer.tsx","./src/components/nostr/kinds/index.tsx","./src/components/ui/avatar.tsx","./src/components/ui/button.tsx","./src/components/ui/dialog.tsx","./src/components/ui/dropdown-menu.tsx","./src/components/ui/hover-card.tsx","./src/components/ui/input.tsx","./src/components/ui/scroll-area.tsx","./src/constants/kinds.ts","./src/constants/nips.ts","./src/core/logic.ts","./src/core/state.ts","./src/hooks/useaccountsync.ts","./src/hooks/uselocale.ts","./src/hooks/usenip.ts","./src/hooks/usenip05.ts","./src/hooks/usenostrevent.ts","./src/hooks/useprofile.ts","./src/hooks/usereqtimeline.ts","./src/hooks/usetimeline.ts","./src/lib/decode-parser.ts","./src/lib/encode-parser.ts","./src/lib/imeta.ts","./src/lib/nip-kinds.ts","./src/lib/nip05.ts","./src/lib/nostr-utils.ts","./src/lib/open-parser.ts","./src/lib/profile-parser.ts","./src/lib/req-parser.ts","./src/lib/utils.ts","./src/services/accounts.ts","./src/services/db.ts","./src/services/event-store.ts","./src/services/loaders.ts","./src/services/relay-pool.ts","./src/types/app.ts","./src/types/man.ts","./src/types/nostr.ts","./src/types/profile.ts"],"version":"5.6.3"}
\ No newline at end of file
+{"root":["./src/main.tsx","./src/root.tsx","./src/vite-env.d.ts","./src/components/command.tsx","./src/components/commandlauncher.tsx","./src/components/decodeviewer.tsx","./src/components/encodeviewer.tsx","./src/components/eventdetailviewer.tsx","./src/components/grimoirewelcome.tsx","./src/components/home.tsx","./src/components/jsonviewer.tsx","./src/components/kindbadge.tsx","./src/components/kindrenderer.tsx","./src/components/manpage.tsx","./src/components/markdown.tsx","./src/components/nipbadge.tsx","./src/components/niprenderer.tsx","./src/components/profileviewer.tsx","./src/components/relayviewer.tsx","./src/components/reqviewer.tsx","./src/components/tabbar.tsx","./src/components/timestamp.tsx","./src/components/winviewer.tsx","./src/components/windowtoolbar.tsx","./src/components/nostr/embeddedevent.tsx","./src/components/nostr/feed.tsx","./src/components/nostr/mediadialog.tsx","./src/components/nostr/mediaembed.tsx","./src/components/nostr/quotedevent.tsx","./src/components/nostr/richtext.tsx","./src/components/nostr/username.tsx","./src/components/nostr/index.ts","./src/components/nostr/nip05.tsx","./src/components/nostr/npub.tsx","./src/components/nostr/relay-pool.tsx","./src/components/nostr/user-menu.tsx","./src/components/nostr/linkpreview/audiolink.tsx","./src/components/nostr/linkpreview/imagelink.tsx","./src/components/nostr/linkpreview/plainlink.tsx","./src/components/nostr/linkpreview/videolink.tsx","./src/components/nostr/linkpreview/index.ts","./src/components/nostr/richtext/emoji.tsx","./src/components/nostr/richtext/eventembed.tsx","./src/components/nostr/richtext/gallery.tsx","./src/components/nostr/richtext/hashtag.tsx","./src/components/nostr/richtext/link.tsx","./src/components/nostr/richtext/mention.tsx","./src/components/nostr/richtext/text.tsx","./src/components/nostr/richtext/index.ts","./src/components/nostr/kinds/baseeventrenderer.tsx","./src/components/nostr/kinds/kind0detailrenderer.tsx","./src/components/nostr/kinds/kind0renderer.tsx","./src/components/nostr/kinds/kind1063renderer.tsx","./src/components/nostr/kinds/kind1renderer.tsx","./src/components/nostr/kinds/kind20renderer.tsx","./src/components/nostr/kinds/kind21renderer.tsx","./src/components/nostr/kinds/kind22renderer.tsx","./src/components/nostr/kinds/kind30023detailrenderer.tsx","./src/components/nostr/kinds/kind30023renderer.tsx","./src/components/nostr/kinds/kind3renderer.tsx","./src/components/nostr/kinds/kind6renderer.tsx","./src/components/nostr/kinds/kind7renderer.tsx","./src/components/nostr/kinds/kind9735renderer.tsx","./src/components/nostr/kinds/kind9802detailrenderer.tsx","./src/components/nostr/kinds/kind9802renderer.tsx","./src/components/nostr/kinds/index.tsx","./src/components/ui/avatar.tsx","./src/components/ui/button.tsx","./src/components/ui/dialog.tsx","./src/components/ui/dropdown-menu.tsx","./src/components/ui/hover-card.tsx","./src/components/ui/input.tsx","./src/components/ui/scroll-area.tsx","./src/constants/kinds.ts","./src/constants/nips.ts","./src/core/logic.ts","./src/core/state.ts","./src/hooks/useaccountsync.ts","./src/hooks/usecopy.ts","./src/hooks/uselocale.ts","./src/hooks/usenip.ts","./src/hooks/usenip05.ts","./src/hooks/usenostrevent.ts","./src/hooks/useprofile.ts","./src/hooks/userelayconnection.ts","./src/hooks/userelayinfo.ts","./src/hooks/usereqtimeline.ts","./src/hooks/usetimeline.ts","./src/lib/decode-parser.ts","./src/lib/encode-parser.ts","./src/lib/imeta.ts","./src/lib/nip-icons.ts","./src/lib/nip-kinds.ts","./src/lib/nip05.ts","./src/lib/nip11.ts","./src/lib/nostr-utils.ts","./src/lib/nostr-validation.ts","./src/lib/open-parser.ts","./src/lib/profile-parser.ts","./src/lib/relay-parser.ts","./src/lib/req-parser.ts","./src/lib/utils.ts","./src/services/accounts.ts","./src/services/db.ts","./src/services/event-store.ts","./src/services/loaders.ts","./src/services/relay-pool.ts","./src/types/app.ts","./src/types/man.ts","./src/types/nip11.ts","./src/types/nostr.ts","./src/types/profile.ts"],"version":"5.6.3"}
\ No newline at end of file