Is sift.com agent ready?
sift.com is largely agent ready: it scores 64/100 (grade B) on the w2agent rubric.
Changed since last check
+2 points since the previous check (2026-09-15)
Fixed: Reachable as ChatGPT-User, Reachable as Perplexity-User
Changed: Response time (partial → fail)
Category scores
Category breakdown not recorded for this audit.
Agent protocol panel
- A2A agent cardNot found
- OAuth discoveryNot found
- MCP discoveryPresent
- llms.txt validityPresent
Check results
Bot Accessibility
- ✓No error status codespass
- ✗Response timefail
- ✓XML sitemap existspass
- ✓AI agent accesspass
- ✓Edge treatment of agent user-agentstracked, not scoredpass
- ✓robots.txt existspass
- ✗Content negotiation (Markdown)fail
- —Declared AI usage preferencestracked, not scoredskip
Structured Data
- ✓OpenGraph meta tagspass
- ~Semantic HTML elementspartial
- ✓Appropriate Schema.org typepass
- ~JSON-LD validpartial
- ✓Heading hierarchypass
- ✓Schema.org JSON-LD presentpass
- ✗Schema.org completenessfail
Content Quality
- ✓FAQ contentpass
- ~Answer-first contentpartial
- ✓Content lengthpass
- ✓Token efficiency (HTML-to-text ratio)pass
- ✓Freshness signalspass
- ✗Author attributionfail
- ✓Citation readinesspass
- ✓Lists and tables for structured infopass
Agent Discovery
- ✓llms.txt follows specpass
- ✓llms.txt existspass
- —MCP server cardtracked, not scoredskip
- ✓Markdown alternate linkspass
- ✗/.well-known/agent-card.jsonfail
- ✓llms.txt links resolvepass
Agent Protocols
- ✓Discoverable API endpointspass
- ✓MCP endpointpass
- ✗Action schemasfail
- ✗/.well-known/ucpfail
- ✓Structured formspass
- —WebMCP imperative APItracked, not scoredskip
- —WebMCP declarative APItracked, not scoredskip
- ✓Reachable as Google-Agentpass
- ✓Reachable as ChatGPT-Userpass
- ✓Reachable as Perplexity-Userpass
Agent Auth
- ~MCP authorization (401 challenge → protected resource metadata)partial
- ✗PKCE S256 supportfail
- ✗Public API surfacefail
- —Client ID Metadata Documents (bonus)skip
- —OpenAPI specificationskip
- ✗Agent/bot auth documentationfail
- ✗OAuth discovery chain (RFC 9728 → RFC 8414)fail
- ✓Developer portalpass
- ✗Scoped API permissionsfail
- —API catalog (RFC 9727)skip
- —Agent operator signing directorytracked, not scoredskip
Technical
- ✓HTTPSpass
- ✓UTF-8 charsetpass
- ✓Canonical URLspass
- ✓Mobile viewportpass
- ✓Content accessible without JSpass
- ✓Security headerspass
Other
- —ecommerce-gtin-validskip
- ✓wp-page-builder-souppass
- ✗wp-rest-api-accessiblefail
- —ecommerce-product-schemaskip
- ✓wp-security-blocking-botspass
- ✓wp-robots-default-blockingpass
- —ecommerce-checkout-accessibleskip
Score history
- 64/100 · rubric v3.0
- 62/100 · rubric v3.0
- 35/100 · rubric v2.0
- 35/100 · rubric v2.0
- 35/100 · rubric v2.0
- 49/100 · rubric v2.0
- 35/100 · rubric v2.0
- 52/100 · rubric v2.0