Telemetry and egress changedthird-party/claude-desktop/telemetry
Nearest release: v2.1.287, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 1 Oct 2026 19:48 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 1 Oct 2026 20:07 UTC.
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252252| `cdn.jsdelivr.net` | Artifact preview asset CDNs |
253253| `*.claudemcpcontent.com` | MCP App widget iframe |
254254| `assets.claude.ai` | Fonts loaded by MCP App widget iframes |
255| `redirector.gvt1.com` | Spellcheck dictionary download (Linux) |
256| `*.gvt1.com` | Redirect targets of the spellcheck dictionary download (Linux) |
255257
256258`*.claudemcpcontent.com` serves [MCP Apps](/docs/connectors/building/mcp-apps/getting-started), the interactive widgets connectors can render. Each widget loads in a sandboxed iframe on its own generated subdomain, so allowlist the wildcard.
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