Location
United States
Country level only
Domain
x.com
Served through Cloudflare's network, which answers from the location nearest each visitor.
Still looking this up. This tab fills in as the answers arrive.
Network Every network on the internet has an autonomous system number (ASN). This is the one that announces this address.
AS13335Cloudflare
Cloudflare, Inc.
BGP prefixPrefix The block of addresses this IP is announced in to the rest of the internet. RPKI valid means the block's owner signed off on the network announcing it.
RPKI valid172.66.0.0/22
Seen by 3,443 peers
Latency Round trip for an HTTPS request from your browser to the site and back, including the server's reply time.
Live— ms
Measuring from your browser…
At a glance
Route
Finding a probe near you…
Networks crossed
Each network is an autonomous system (AS). Your traffic is handed from one to the next where they connect, following
the routes BGP advertises.
- AS16509Anthropic, PBC
- AS13335Cloudflare
Tracing from a probe near you with Globalping. Hop locations that its round-trip times rule out are left off the map.
DNS records
TypeNameValueTTL
Ax.com172.66.0.22740 sec
NSx.coma.r10.twtrdns.net2 hr
NSx.coma.u10.twtrdns.net2 hr
NSx.comb.r10.twtrdns.net2 hr
NSx.comb.u10.twtrdns.net2 hr
NSx.comc.r10.twtrdns.net2 hr
NSx.comc.u10.twtrdns.net2 hr
NSx.comd.r10.twtrdns.net2 hr
NSx.comd.u10.twtrdns.net2 hr
MXx.com1 aspmx.l.google.com5 min
MXx.com5 alt1.aspmx.l.google.com5 min
MXx.com5 alt2.aspmx.l.google.com5 min
MXx.com10 alt3.aspmx.l.google.com5 min
MXx.com10 alt4.aspmx.l.google.com5 min
TXTx.com"3089463"5 min
TXTx.com"_w548xs1kfxtlqk3jyx19bzwk34c473i"5 min
TXTx.com"adobe-idp-site-verification=ab4d9ce3473a73e81f46238da34ea4967fd5ac80e5c43fbfa8dff46d06a5321c"5 min
TXTx.com"adobe-sign-verification=c693a744ee2d282a36a43e6e724c5ea"5 min
TXTx.com"apple-domain-verification=sEij6tJOW11fVNrG"5 min
TXTx.com"atlassian-domain-verification=j6u0o1PTkobCXC84uEF/sWpIPtaZURBVYqKzmTvT8wugLcHT1vvrzzA63iP1qSLN"5 min
TXTx.com"atlassian-sending-domain-verification=bd424180-8645-4de5-bd6a-285479c7577a"5 min
TXTx.com"central-10416"5 min
TXTx.com"figma-domain-verification=ee8420edd01965ba297f3438c907cfc6fbbaa1ee90a07b28f28bcfca8e6017bb-1729630998"5 min
TXTx.com"google-site-verification=6Xapa1BbHGcpSKAIcPHcZsxuKK2yK9FCn3OpZDgUBSs"5 min
TXTx.com"google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g"5 min
TXTx.com"google-site-verification=BT51mebIp7CbI7Qy_5Qg6LJLSBrLuCGQ_oznVAgfgKA"5 min
TXTx.com"google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A"5 min
TXTx.com"google-site-verification=isX7U92-gLht5aKvjaPvQ9tWaxoqREy8agpAOcqlfIE"5 min
TXTx.com"google-site-verification=lEZNYWieV7-UbDJafAm0u_RvNFb7GGqIYWAP4JmG5qs"5 min
TXTx.com"google-site-verification=rbRGYlOADDbtUYJTGd8GEDm0PwPZExviDSaSH4JLR8Q"5 min
TXTx.com"google-site-verification=reUF-TgZq93ZGtzImw42sfYglI2hY0QiGRmfc4jeKbs"5 min
TXTx.com"kkdl3qb3tcrmdhfsm803p67r0my0svs8"5 min
TXTx.com"notion-domain-verification=BnCKbWESk142VKiGKHQ8PZkBfVoWYpsZxzl8Z95k0jB"5 min
TXTx.com"shopify-verification-code=cUZazKrqCWgcshrcGvgfFR1lieuhRF"5 min
TXTx.com"slack-domain-verification=Csk4bjCPFnJaDLLaKFUwCTFuUpCVvnYlAm2Tba0i"5 min
TXTx.com"stripe-verification=11AE5005048CF2B40BD2AC26DA89C512596CF727581C499E240549D95C37CEE0"5 min
TXTx.com"stripe-verification=46F7B88485621DC18923B43D12E90E6CDBCE232F2FEBCF084E6EFA91F6BA707D"5 min
TXTx.com"v=spf1 ip4:199.16.156.0/22 ip4:199.59.148.0/22 include:_spf.google.com include:_spf.salesforce.com include:_oerp.x.com include:phx1.rp.oracleemaildelivery.com include:iad1.rp.oracleemaildelivery.com -all"5 min
TXT_dmarc.x.com"v=DMARC1; p=reject; rua=mailto:caf935f12c8645b2921b0749d1fcd49e@dmarc-reports.cloudflare.net"5 min
Protected from spoofing
Mail that fails its checks is rejected under x.com's DMARC policy, so forged mail doesn't reach inboxes.
- Receives mail
- Google Workspace
- Mail servers
- aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+2 more
- SPFLists the servers allowed to send mail for the domain. Receivers check it against the sending server.
- Rejects everything else6 of 10 DNS lookups · includes _spf.google.com, _spf.salesforce.com…
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Rejectsends reports
- MTA-STSRequires other mail servers to use encrypted connections (TLS) when delivering to this domain.
- Not published
- TLS reportsAsks other mail servers to report failed encrypted deliveries (TLS-RPT).
- Not requested
- BIMIA brand logo that some mail apps show next to authenticated mail from the domain.
- Logo published
Details
Network
- IPv4
- 172.66.0.227
- ASNThe autonomous system number of the network that announces this address.
- AS13335
- Operator
- Cloudflare, Inc.
- CDNFrom the provider's own published list of its address ranges.
- Cloudflare
- PrefixThe block of addresses announced over BGP that contains this address.
- 172.66.0.0/22
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 3,443 peers
- Type
- Content
- Registry
- ARIN
Location
Country level- Country
- United States
- Continent
- North America
Registration
RDAP- PopularityCloudflare Radar's ranking of domains by how often 1.1.1.1 users look them up.
- #91 worldwide
- Category
- Social Networks
- Registrar
- GoDaddy.com, LLC
- Registered
- Apr 2, 199333 years ago
- Expires
- Oct 20, 2034in 8 years
- Updated
- Dec 3, 2024
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Delete lockedclient renew prohibitedTransfer lockedUpdate locked
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- a.r10.twtrdns.neta.u10.twtrdns.netb.r10.twtrdns.netb.u10.twtrdns.netc.r10.twtrdns.netc.u10.twtrdns.netd.r10.twtrdns.netd.u10.twtrdns.net
- Registrant
- Redacted for privacy
Apr 2, 19932,931 days leftOct 20, 2034
AI & agents
Closed to AI crawlers
robots.txt turns away 22 AI crawlers, including the ones behind ChatGPT search, Claude and Perplexity. AI Overviews, Copilot and Siri can still cite it.
Crawlers
Blocks 22 of 25TrainingSearchOn request
They visit a page when someone asks an assistant about it. ChatGPT's, Perplexity's, Meta's and Amazon's treat robots.txt as advisory;
Anthropic's and Mistral's follow it.
OpenAIGPTBotblockedOAI-SearchBotblockedChatGPT-Userblocked
AnthropicClaudeBotblockedClaude-SearchBotblockedClaude-Userblocked
GoogleGoogle-ExtendedblockedGooglebotallowed—
Microsoft—bingbotallowed—
AppleApplebot-ExtendedblockedApplebotallowed—
Perplexity—PerplexityBotblockedPerplexity-Userblocked
MetaMeta-ExternalAgentblockedMeta-WebIndexerblockedMeta-ExternalFetcherblocked
AmazonAmazonbotblockedAmzn-SearchBotblockedAmzn-Userblocked
MistralMistralAI-TrainingblockedMistralAI-IndexblockedMistralAI-Userblocked
OthersCCBotblockedBytespiderblockedDuckAssistBotblocked
- Can cite itThe AI products that can use the site in their answers: each answers from one crawler (OAI-SearchBot for ChatGPT search, Googlebot for AI Overviews, bingbot for Copilot), and robots directives on the front page, like noindex, nosnippet and noarchive, keep some out.
- AI OverviewsCopilotSiri
- Kept out of
- ChatGPT search: robots.txt blocks OAI-SearchBotClaude: robots.txt blocks Claude-SearchBotPerplexity: robots.txt blocks PerplexityBotGemini: robots.txt blocks Google-ExtendedMeta AI: robots.txt blocks Meta-WebIndexer
It's on Cloudflare, which can also block AI crawlers at its edge whatever robots.txt says.
Reading
- Without JavaScriptText on the front page before any scripts run: what GPTBot, ClaudeBot, PerplexityBot and most agents read. Google, Bing and Apple's crawlers run scripts.
- 61 words
- MarkdownAgents like Claude Code, Cursor and OpenCode ask for Markdown in their Accept header. It's the page without its markup, so it costs them far fewer tokens.
- Not offered
- llms.txtA Markdown file listing a site's key pages for AI tools. Coding agents read it; search crawlers mostly don't.
- Not published
- Structured dataschema.org JSON-LD in the page: facts about the site in a form machines read directly.
- None on the front page
Tools Ways an AI agent can do things on the site, not just read it: an MCP server that apps like Claude, ChatGPT and Cursor connect to, an API catalog, packaged agent skills, a shopping profile (UCP), or tools the page offers AI in the browser (WebMCP). heade.rs looks in the official MCP Registry and the files the site publishes under /.well-known/.
No MCP server, API catalog, agent skills, shopping profile or in-page tools found.
HTTPS
Certificate
Valid- Issuer
- Let's Encrypt
- Issuing CA
- YE1
- Covers
*.twitter.com, *.x.com, isolation.atla.twitter.com +2 more
twitter.com, x.com- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 26 more certificates
Oct 4, 202683 days leftJan 2, 2027
From Certificate Transparency logs, via Cert Spotter.
Security
A- HSTSStrict-Transport-Security makes browsers refuse plain HTTP to this site. Preloaded sites are HTTPS-only even on a first visit.
- 20 years · with subdomains
- HTTP → HTTPSWhether the plain http:// address redirects visitors to the secure one.
- Redirects
- HTTP/3The newest HTTP, over QUIC. Announced in the alt-svc header or the domain's HTTPS DNS record.
- Not announced
- CAADNS records naming the only certificate authorities allowed to issue certificates for the domain.
- Any CA may issue
- security.txtA standard file (RFC 9116) telling security researchers how to report vulnerabilities.
- https://hackerone.com/twitterExpired
Security headers 6 of 7
- HSTSpresent
- CSPpresent
- Framingpresent
- No sniffingpresent
- Referrerpresent
- Permissionsmissing
- Isolationpresent
Response
200 OK3224 ms from CMHDNS lookup2 ms
200 x.com3224 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Website
Page
X. It’s what’s happening / X
From breaking news and entertainment to sports and politics, get the full story with all the live commentary.
- Language
- English
- Theme color
- #FFFFFF
Built with
- CloudFrom the provider's published address ranges.
- Cloudflare
- CDN
- Cloudflarecf-ray header
Response headers
- cache-control
- no-cache, no-store, max-age=0
- cf-cache-status
- DYNAMIC
- cf-ray
- a49756dde9903f27-CMH
- connection
- close
- content-security-policy
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default-src 'self';script-src 'self' 'nonce-a431RhOA95kDe933yFJMVg==' 'unsafe-inline' 'wasm-unsafe-eval' 'report-sample' https://*.twimg.com https://abs.twimg.com https://accounts.google.com/gsi/client https://appleid.cdn-apple.com https://*.stripe.com https://cdn.plaid.com/link/v2/stable/link-initialize.js https://sdk.dv.socure.io/latest/device-risk-sdk.js https://cdn.getpinwheel.com/pinwheel-v3.2.1.js https://maps.googleapis.com/ https://maps.gstatic.com/ https://*.x.com https://app.intercom.io https://widget.intercom.io https://js.intercomcdn.com;script-src-attr 'none' 'report-sample';style-src 'self' 'unsafe-inline' https://*.twimg.com https://accounts.google.com/gsi/style;style-src-elem 'self' 'unsafe-inline' https://*.twimg.com https://accounts.google.com/gsi/style;img-src 'self' https://x.com:443 https://twitter.com https://*.twimg.com https://*.pscp.tv https://*.video.pscp.tv https://abs.twimg.com data: blob: https://play-lh.googleusercontent.com https://img.youtube.com https://i.ytimg.com https://ton.twitter.com/twitter-assets/ https://ton.twitter.com/onboarding/ https://cm.g.doubleclick.net https://analytics.twitter.com https://*.plaid.com https://*.x.com/core/embed/ https://assets.grok.com https://computer-hub.grok.com https://*.grokusercontent.com https://*.gstatic.com https://serpapi.com https://*.grok.me https://media.riffsy.com https://*.giphy.com https://media.tenor.com https://c.tenor.com https://cdn.7tv.app https://js.intercomcdn.com https://static.intercomassets.com https://downloads.intercomcdn.com https://downloads.intercomcdn.eu https://downloads.au.intercomcdn.com https://uploads.intercomusercontent.com https://gifs.intercomcdn.com https://video-messages.intercomcdn.com https://messenger-apps.intercom.io https://messenger-apps.eu.intercom.io https://messenger-apps.au.intercom.io https://*.intercom-attachments-1.com https://*.intercom-attachments.eu https://*.au.intercom-attachments.com https://*.intercom-attachments-2.com 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https://upload.x.com https://sentry.io https://*.sentry.io wss://localhost.x.com:* https://m.castle.io wss://chat-ws.x.com https://*.x.com https://accounts.google.com/gsi/ https://csi.gstatic.com https://appleid.cdn-apple.com https://appleid.apple.com https://places.googleapis.com https://*.prelude.dev data: https://analytics.twitter.com https://*.stripe.com https://*.plaid.com https://*.dv.socure.io https://checkoutshopper-live.adyen.com https://maps.googleapis.com https://maps.gstatic.com https://x-money-dev-sensitive-documents.s3.us-west-2.amazonaws.com https://x-money-dev-safe-sensitive-documents.s3.us-west-2.amazonaws.com https://x-money-staging-sensitive-documents.s3.us-west-2.amazonaws.com https://x-money-staging-safe-sensitive-documents.s3.us-west-2.amazonaws.com https://x-money-prod-sensitive-documents.s3.us-west-2.amazonaws.com https://x-money-prod-safe-sensitive-documents.s3.us-west-2.amazonaws.com https://grok.com https://*.grok.com wss://grok.com wss://*.grok.com wss://*.cursorvm.com https://*.x.ai wss://*.x.ai https://storage.googleapis.com https://media.riffsy.com https://*.giphy.com https://media.tenor.com https://c.tenor.com https://7tv.io wss://events.7tv.io https://cognito-identity.us-east-1.amazonaws.com https://streaming-rekognition.us-east-1.amazonaws.com wss://streaming-rekognition.us-east-1.amazonaws.com https://cdn.liveness.rekognition.amazonaws.com https://via.intercom.io https://api.intercom.io https://api.au.intercom.io https://api.eu.intercom.io https://api-iam.intercom.io https://api-iam.eu.intercom.io https://api-iam.au.intercom.io https://api-ping.intercom.io https://nexus-websocket-a.intercom.io wss://nexus-websocket-a.intercom.io https://nexus-websocket-b.intercom.io wss://nexus-websocket-b.intercom.io https://nexus-europe-websocket.intercom.io wss://nexus-europe-websocket.intercom.io https://nexus-australia-websocket.intercom.io wss://nexus-australia-websocket.intercom.io https://uploads.intercomcdn.com https://uploads.intercomcdn.eu https://uploads.au.intercomcdn.com https://uploads.eu.intercomcdn.com https://uploads.intercomusercontent.com https://x.com https://*.cloudfront.net https://*.watch.x.com;frame-src 'self' https://accounts.google.com https://appleid.apple.com https://platform.twitter.com https://platform.x.com https://studio.x.com https://studio-dev.x.com https://iframe.arkoselabs.com https://*.x.com https://*.crbcos.com https://*.plaid.com https://*.stripe.com https://cdn.getpinwheel.com/ https://checkoutshopper-live.adyen.com https://artifacts.grokusercontent.com https://intercom-sheets.com https://www.intercom-reporting.com https://player.vimeo.com https://fast.wistia.net;worker-src 'self' blob: https://*.twimg.com https://abs.twimg.com;frame-ancestors 'self' https://x.com https://x.com:443 https://twitter.com https://twitter.com:443;base-uri 'self';form-action 'self' https://accounts.google.com https://intercom.help https://api-iam.intercom.io https://api-iam.eu.intercom.io https://api-iam.au.intercom.io;object-src 'none';upgrade-insecure-requests- content-type
- text/html; charset=UTF-8
- cross-origin-opener-policy
- same-origin-allow-popups
- cross-origin-resource-policy
- same-origin
- date
- Mon, 12 Oct 2026 16:04:18 GMT
- origin-agent-cluster
- ?1
- origin-cf-ray
- a49756dde9903f27-CMH
- perf
- 7402827104
- referrer-policy
- strict-origin-when-cross-origin
- server
- cloudflare envoy
- set-cookie
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- ct0=; Max-Age=-1791821057; Expires=Thu, 01 Jan 1970 00:00:01 GMT; Path=/; Domain=.x.com; Secure; SameSite=Lax
- set-cookie
- guest_id=v1%3A179182105569065431; Max-Age=34214400; Expires=Fri, 12 Nov 2027 16:04:18 GMT; Path=/; Domain=.x.com; Secure; SameSite=None
- set-cookie
- gt=2109676544729751878; Max-Age=9000; Expires=Mon, 12 Oct 2026 18:34:18 GMT; Path=/; Domain=.x.com; Secure; SameSite=Lax
- strict-transport-security
- max-age=631138519; includeSubdomains
- transfer-encoding
- chunked
- vary
- accept-encoding
- x-content-type-options
- nosniff
- x-dns-prefetch-control
- off
- x-download-options
- noopen
- x-frame-options
- SAMEORIGIN
- x-permitted-cross-domain-policies
- none
- x-response-time
- 3170
- x-served-by
- t4_a
- x-server
- x-web
- x-transaction-id
- 1091a091bb310253
- x-xss-protection
- 0
Tech stack
Built with Each entry says what gave it away: a response header, a cookie's name, an asset's path or file name, or markup the tool leaves in the page. Versions are checked against endoflife.date's support schedules and, for JavaScript packages, OSV's vulnerability database, which carries GitHub's security advisories.
CDN & edge
- Cloudflare
cf-ray header
Framework
- TanStack Router
TanStack Router hydration data
UI
- React
its framework renders with React
Styling
- Tailwind CSS
52 Tailwind CSS class names
Fonts
- Chirp
self-hosted font
Bot protection
- Cloudflare Bot Management
__cf_bm cookie
How it's made
- RenderingPrerendered pages are built ahead of time and served as files. Pages rendered on each request are built by server code for every visitor. Pages drawn in the browser arrive nearly empty and depend on JavaScript, which most AI crawlers don't run. Islands are interactive parts in otherwise static HTML.
- Rendered on each requestCache-Control: no-cache, no-store, max-age=0
- Edge cacheWhether a CDN or proxy answered heade.rs's request from its cache, and how long ago that copy was made (the Age header).
- Not cachedCloudflare
- Cache-Control
- no-cache, no-store, max-age=0
- HTML
- 40.5 KB
- Data for scriptsData the server writes into the HTML so JavaScript can pick up where the server left off (hydration). Browsers download and parse all of it before the page responds, so large payloads slow pages down, even when the page looks ready.
- TanStack Router data 2.4 KB · 6% of the HTML
- Scripts
- 1 file · 9 inline1 from other sites · 1 modules
Code from other sites Scripts a page loads from another domain run with the same power as its own code: they can read what visitors type and change the page. heade.rs checks what the HTML loads, not what tag managers add once they run.
- Social
- X embeds
- Integrity checksSubresource Integrity: the script tag carries a hash of the file, so the browser refuses it if the other site changes it. Analytics and tag manager scripts change by design and can't carry one; pinned library files can.
- 0 of 1 script