crawlindex

Tranco rank 4,325

opensea.io

opensea.io scores 67 out of 100 for agent readiness. It blocks 5 of 11 answer-surface AI crawlers.

Score 67 out of 100, grade C
Last measured
2026-08-09 18:15 UTC
First seen
2026-08-09
Rubric / probe
v1.0.0 / v2.0.0

Built on Next.js, served through Cloudflare. Compare against everything else on the same stack.

How this score is made up

Agent access29.4 / 45

  • Answer-surface crawlers allowed. 5 of 11 blocked: GPTBot, ClaudeBot, Google-Extended, Applebot-Extended, meta-externalagent.
  • Secondary crawlers allowed. 3 of 12 blocked: CCBot, Amazonbot, Bytespider.
  • Serves crawlers the same content. A crawler and a browser receive comparable responses.

Machine-readable surface16 / 25

  • robots.txt published. robots.txt is present and parseable.
  • Sitemap declared in robots.txt. robots.txt points crawlers at a sitemap.
  • llms.txt published. /llms.txt is served but is off-spec: no blockquote summary; no markdown link list.
  • agents.md published. No /agents.md.

Content structure22 / 30

  • Organization schema. No Organization JSON-LD. Agents cannot reliably attribute this site to an entity.
  • WebSite schema. WebSite JSON-LD present.
  • Additional structured data. Also declares: BreadcrumbList.
  • Readable without JavaScript. 533,078 characters of text in the server response. Most crawlers do not execute JavaScript.
  • Single top-level heading. 1 h1 element found.
  • Semantic landmarks. Uses main, nav, footer, aside.

Crawler policy

Read from opensea.io/robots.txt. A crawler is listed as blocked when the rules deny it the site root. This operator names 8 AI crawlers explicitly, which means the policy is deliberate rather than inherited from a wildcard rule.

AI crawler access policy for opensea.io
CrawlerOperatorTierNamedStatus
GPTBotOpenAI1yesBlocked
OAI-SearchBotOpenAI1noAllowed
ChatGPT-UserOpenAI1noAllowed
ClaudeBotAnthropic1yesBlocked
Claude-UserAnthropic1noAllowed
Claude-SearchBotAnthropic1noAllowed
PerplexityBotPerplexity1noAllowed
Perplexity-UserPerplexity1noAllowed
Google-ExtendedGoogle1yesBlocked
Applebot-ExtendedApple1yesBlocked
meta-externalagentMeta1yesBlocked
CCBotCommon Crawl2yesBlocked
AmazonbotAmazon2yesBlocked
BytespiderByteDance2yesBlocked
cohere-aiCohere2noAllowed
MistralAI-UserMistral2noAllowed
YouBotYou.com2noAllowed
DuckAssistBotDuckDuckGo2noAllowed
kagi-fetcherKagi2noAllowed
DiffbotDiffbot2noAllowed
Google-NotebookLMGoogle2noAllowed
TavilyBotTavily2noAllowed
FirecrawlAgentFirecrawl2noAllowed

Show this score

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CrawlIndex badge for opensea.io, score 67
<a href="https://crawlindex.org/site/opensea.io"><img src="https://crawlindex.org/badge/opensea.io.svg" alt="CrawlIndex agent readiness score for opensea.io" width="196" height="28"></a>

This measurement as JSON

Using these figures

Free to reuse in research, journalism or a product under CC BY 4.0, with credit to Fidget Labs BV. Quote the measurement date so the claim stays checkable as the index moves.

CrawlIndex by Fidget Labs BV. "opensea.io agent readiness." https://crawlindex.org (measured 2026-08-09). Licensed CC BY 4.0.