STATUS IS UPREADINESS PROFILE

Website readiness profile · Snapshot 23 October 2026

anthropic.com

anthropic.com's public homepage, certificate and DNS checked against 31 practices and compared with 94 Generative AI Chatbots & Assistants sites.

Readiness index
80/100

Generative AI Chatbots & Assistants median 73

Ahead of
76%

of measured Generative AI Chatbots & Assistants sites

Practices observed
23/30

1 of 31 could not be measured

Popularity band
Top 50K

Chrome UX Report top-sites list

Measured 2026-10-23 11:52:30 UTC from one location. How we measure

Readiness by lane

Green: anthropic.com. Thin bar: Generative AI Chatbots & Assistants peer median.

Enable

92/100

Peers 89

Harden

82/100

Peers 62

Accelerate

69/100

Peers 77

Recover

0/100

Peers 4

Priority fixes for anthropic.com

Ordered by impact and by how common each practice is among peers.

  1. Priority 1 · Accelerate

    Modern image formats in use

    Observed: The homepage had 4 images and none used WebP or AVIF.

    Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.

    What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

    On Cloudflare: Cloudflare Polish can convert images to WebP.

    67% of Generative AI Chatbots & Assistants peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.

  2. Priority 2 · Harden

    HSTS kept for at least a year

    Observed: Strict-Transport-Security was sent with a max-age of 0 days, below the one-year benchmark.

    What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

    On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.

    46% of Generative AI Chatbots & Assistants peers do this.

  3. Priority 3 · Accelerate

    No render-blocking scripts in <head>

    Observed: The homepage <head> loaded 1 external script without async or defer.

    What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.

    On Next.js: Use the next/script component with an appropriate loading strategy.

    44% of Generative AI Chatbots & Assistants peers do this.

  4. Priority 4 · Enable

    Structured data present

    Observed: The homepage had no JSON-LD structured data.

    What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.

    62% of Generative AI Chatbots & Assistants peers do this.

What anthropic.com already does well

Practices fewer than half of Generative AI Chatbots & Assistants peers use.

  • security.txt publishedsecurity.txt with a contact found.11% of peers
  • CAA records limit who can issue certificatesCAA limits issuance to amazon.com, amazonaws.com, amazontrust.com and others.28% of peers
  • HTTP/3 advertisedHTTP/3 advertised.37% of peers

What we saw

Homepage checked
https://www.anthropic.com/
Homepage response
HTTP 200
TLS
TLSv1.3, HTTP/2
Certificate
Let's Encrypt, 89-day validity, expiring 2026-12-04
CDN or edge
Cloudflare, Google edge
Platform or framework
Next.js
DNS operators
Cloudflare
HSTS
max-age 0 days
DMARC policy
p=reject
Homepage HTML
211 KB, br
Images on homepage
4

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Observed 23

  • HTTP requests move to HTTPS
  • TLS 1.3 negotiated
  • Certificate has more than 14 days left
  • Certificate lifetime of 100 days or less
  • CAA records limit who can issue certificates
  • security.txt published
  • DMARC policy enforces quarantine or reject
  • X-Content-Type-Options: nosniff
  • Framing restricted
  • Content Security Policy present
  • HTTP/2 negotiated
  • HTTP/3 advertised
  • HTML compressed
  • Static files cached for 30 days or more
  • robots.txt published
  • XML sitemap discoverable
  • Reachable over IPv6
  • Canonical URL declared
  • Meta description written
  • Mobile viewport configured
  • Social preview image set
  • Page language declared
  • At most one redirect to the homepage

Not measured 1

  • Offscreen images lazy-loaded

Own anthropic.com?

Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.

Live status for this site: Status Is Down: anthropic.com. This profile covers configuration only.

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