Location
United States
Country level only
Domain
github.com
Hosted on GitHub.
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.
AS36459GitHub
GitHub, 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 valid140.82.114.0/24
Seen by 3,226 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
DNS records
TypeNameValueTTL
Agithub.com140.82.114.337 sec
NSgithub.comdns1.p08.nsone.net15 min
NSgithub.comdns2.p08.nsone.net15 min
NSgithub.comdns3.p08.nsone.net15 min
NSgithub.comdns4.p08.nsone.net15 min
NSgithub.comns-1283.awsdns-32.org15 min
NSgithub.comns-1707.awsdns-21.co.uk15 min
NSgithub.comns-421.awsdns-52.com15 min
NSgithub.comns-520.awsdns-01.net15 min
MXgithub.com0 github-com.mail.protection.outlook.com5 min
TXTgithub.com"00Dd0000000hHE0=1TBKg000000TN2r"30 sec
TXTgithub.com"MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805"30 sec
TXTgithub.com"MS=ms44452932"30 sec
TXTgithub.com"MS=ms58704441"30 sec
TXTgithub.com"TAILSCALE-xOzoDvFUzZr5YYVCQFuD"30 sec
TXTgithub.com"adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b"30 sec
TXTgithub.com"anthropic-domain-verification-4az7qn=if8YWuRRqwLycGJDooumzHtxm"30 sec
TXTgithub.com"apple-domain-verification=RyQhdzTl6Z6x8ZP4"30 sec
TXTgithub.com"atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8"30 sec
TXTgithub.com"calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP"30 sec
TXTgithub.com"cursor-domain-verification-gtfwmt=1rfLOtiTngX5QSxD5HvNKTvm3"30 sec
TXTgithub.com"docusign=087098e3-3d46-47b7-9b4e-8a23028154cd"30 sec
TXTgithub.com"facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50"30 sec
TXTgithub.com"google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks"30 sec
TXTgithub.com"google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o"30 sec
TXTgithub.com"jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ"30 sec
TXTgithub.com"krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE"30 sec
TXTgithub.com"loom-site-verification=f3787154f1154b7880e720a511ea664d"30 sec
TXTgithub.com"miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9"30 sec
TXTgithub.com"openai-domain-verification=dv-3nh33eQwdkotMIAzLrIDVZo1"30 sec
TXTgithub.com"serval-domain-verification-ydryhj=qbkiEakpwEpTvHh5fIiCqtaue"30 sec
TXTgithub.com"shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o"30 sec
TXTgithub.com"stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f"30 sec
TXTgithub.com"v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.2" "27.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all"30 sec
TXT_dmarc.github.com"v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1"5 min
CAAgithub.com0 issue "digicert.com"1 hr
CAAgithub.com0 issue "globalsign.com"1 hr
CAAgithub.com0 issue "letsencrypt.org"1 hr
CAAgithub.com0 issue "sectigo.com"1 hr
CAAgithub.com0 issuewild "digicert.com"1 hr
CAAgithub.com0 issuewild "letsencrypt.org"1 hr
CAAgithub.com0 issuewild "sectigo.com"1 hr
Protected from spoofing
Mail that fails its checks is sent to spam under github.com's DMARC policy, so forged mail doesn't reach inboxes.
- Receives mail
- Microsoft 365
- Mail servers
- github-com.mail.protection.outlook.com
- SPFLists the servers allowed to send mail for the domain. Receivers check it against the sending server.
- Soft-fails everything else10 of 10 DNS lookups · includes spf.protection.outlook.com, _netblocks.google.com…
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Quarantinesubdomains: reject · sends 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.
- Not published
Details
Network
- IPv4
- 140.82.114.3
- Reverse DNSThe hostname this address points back to (its PTR record).
- lb-140-82-114-3-iad.github.com
- ASNThe autonomous system number of the network that announces this address.
- AS36459
- Operator
- GitHub, Inc.
- HostingFrom the provider's own published list of its address ranges.
- GitHub
- PrefixThe block of addresses announced over BGP that contains this address.
- 140.82.114.0/24
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 3,226 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.
- Top 200
- Registrar
- MarkMonitor Inc.
- Registered
- Oct 9, 200718 years ago
- Expires
- Oct 9, 2028in 2 years
- Updated
- Sep 7, 2026
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Delete lockedTransfer lockedUpdate locked
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- dns1.p08.nsone.netdns2.p08.nsone.netdns3.p08.nsone.netdns4.p08.nsone.netns-1283.awsdns-32.orgns-1707.awsdns-21.co.ukns-421.awsdns-52.comns-520.awsdns-01.net
- Registrant
- Redacted for privacy
Oct 9, 2007739 days leftOct 9, 2028
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
- AS36459GitHub
Tracing from a probe near you with Globalping. Hop locations that its round-trip times rule out are left off the map.
HTTPS
Certificate
Valid- Issuer
- Sectigo
- Issuing CA
- Sectigo Public Server Authentication CA DV R36
- Covers
- github.com, www.github.com
- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 8 more certificates
Oct 2, 202690 days leftDec 30, 2026
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.
- 1 year · with subdomainsPreloaded in browsers
- 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.
- DigiCert, GlobalSign, Let's Encrypt, Sectigo
- security.txtA standard file (RFC 9116) telling security researchers how to report vulnerabilities.
- https://hackerone.com/github
Security headers 5 of 7
- HSTSpresent
- CSPpresent
- Framingpresent
- No sniffingpresent
- Referrerpresent
- Permissionsmissing
- Isolationmissing
Response
200 OK135 ms from CMHDNS lookup2 ms
200 github.com135 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Website
Page
GitHub · Change is constant. GitHub keeps you ahead. · GitHub
Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.
- Language
- English
- Theme color
- #1e2327
Built with
- CloudFrom the provider's published address ranges.
- GitHub
Response headers
- date
- Fri, 02 Oct 2026 17:47:42 GMT
- content-type
- text/html; charset=utf-8
- content-language
- en-US
- vary
- X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, X-GitHub-Client-Version, Accept-Language, Sec-Fetch-Site,Accept-Encoding, Accept, X-Requested-With
- etag
- W/"7796b965e9773770d1f143d85aa62273"
- cache-control
- max-age=0, private, must-revalidate
- strict-transport-security
- max-age=31536000; includeSubdomains; preload
- x-frame-options
- deny
- x-content-type-options
- nosniff
- x-xss-protection
- 0
- referrer-policy
- origin-when-cross-origin, strict-origin-when-cross-origin
- content-security-policy
default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.… Show all
default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com *.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com github.githubassets.com objects-origin.githubusercontent.com copilot-proxy.githubusercontent.com proxy.individual.githubcopilot.com proxy.business.githubcopilot.com proxy.enterprise.githubcopilot.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net productionresultssa1.blob.core.windows.net productionresultssa2.blob.core.windows.net productionresultssa3.blob.core.windows.net productionresultssa4.blob.core.windows.net productionresultssa5.blob.core.windows.net productionresultssa6.blob.core.windows.net productionresultssa7.blob.core.windows.net productionresultssa8.blob.core.windows.net productionresultssa9.blob.core.windows.net productionresultssa10.blob.core.windows.net productionresultssa11.blob.core.windows.net productionresultssa12.blob.core.windows.net productionresultssa13.blob.core.windows.net productionresultssa14.blob.core.windows.net productionresultssa15.blob.core.windows.net productionresultssa16.blob.core.windows.net productionresultssa17.blob.core.windows.net productionresultssa18.blob.core.windows.net productionresultssa19.blob.core.windows.net github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com wss://alive-staging.github.com api.githubcopilot.com api.individual.githubcopilot.com api.business.githubcopilot.com api.enterprise.githubcopilot.com wss://production-copilot-host.webpubsub.azure.com api.github.com/cmc_internal/api/ edge.fullstory.com rs.fullstory.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com copilot-workspace.githubnext.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com www.youtube-nocookie.com; img-src 'self' data: blob: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com private-avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com release-assets.githubusercontent.com secured-user-images.githubusercontent.com user-images.githubusercontent.com private-user-images.githubusercontent.com opengraph.githubassets.com repository-images.githubusercontent.com marketplace-screenshots.githubusercontent.com copilotprodattachments.blob.core.windows.net/github-production-copilot-attachments/ github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com explore-feed.github.com *.googleusercontent.com objects-origin.githubusercontent.com *.githubusercontent.com images.ctfassets.net/8aevphvgewt8/; manifest-src 'self'; media-src github.com user-images.githubusercontent.com secured-user-images.githubusercontent.com private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com github.githubassets.com assets.ctfassets.net/8aevphvgewt8/ videos.ctfassets.net/8aevphvgewt8/; script-src github.githubassets.com 'sha256-tSjmyPUky1KbRZ0fw9VUil3wFEbeM82rtbJDygGJAXw='; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/- server
- github.com
- content-encoding
- gzip
- accept-ranges
- bytes
- set-cookie
_gh_sess=5Y6iIiBFRDDhbfktmeLc8ZCC7sbcKQWpeinMrLMz1K1%2BWkreaTybFL1dADtNG1SK2hmIddsV%2FubORvQRE7gMkgw%2F8HB76Ya0doobvJ6qT0JaQ%2FRY6Z21RHwKkxb8QgHlDJHIOGu6renmarDlWzGw%2BOhNyNXCMiOzgR%2FOz4%2BmWK80jdNBA0iCDVbfDc65IpL3%2F6%2BG8Nx4idag8BDDW5g%2… Show all
_gh_sess=5Y6iIiBFRDDhbfktmeLc8ZCC7sbcKQWpeinMrLMz1K1%2BWkreaTybFL1dADtNG1SK2hmIddsV%2FubORvQRE7gMkgw%2F8HB76Ya0doobvJ6qT0JaQ%2FRY6Z21RHwKkxb8QgHlDJHIOGu6renmarDlWzGw%2BOhNyNXCMiOzgR%2FOz4%2BmWK80jdNBA0iCDVbfDc65IpL3%2F6%2BG8Nx4idag8BDDW5g%2BCwA3Tuj4TdKs7%2FSiX3pstq%2BHILTgPfghP8oCFDtupz%2BhQWGyhsWwXdH%2FgrCYApS%2FqA%3D%3D--XwnUojpYh6wrWQtr--%2BiT7zeKaaJg%2Bwg0dYIOciA%3D%3D; path=/; HttpOnly; secure; SameSite=Lax- set-cookie
- _octo=GH1.1.780208463.1790963264; expires=Sat, 02 Oct 2027 17:47:44 GMT; domain=.github.com; path=/; secure; SameSite=Lax
- set-cookie
- logged_in=no; expires=Sat, 02 Oct 2027 17:47:44 GMT; domain=.github.com; path=/; HttpOnly; secure; SameSite=Lax
- x-github-request-id
- B00D:FB5FE:5DD798:795BF0:6ABFEE40
- x-github-edge-region
- iad
- connection
- close
- transfer-encoding
- chunked
Exposure
Open ports
3 open- 22SSH
- 80HTTP
- 443HTTPS
- Seen asHostnames Shodan has seen pointing at, or presented by, this address.
- github.comwww.github.comlb-140-82-114-3-iad.github.com
From Shodan InternetDB, updated weekly.
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.
Hosting
- GitHub
GitHub address range
UI
- Turbo
Turbo attributes
Styling
- CSS Modules
200 CSS Modules class names
Fonts
- Mona Sans
self-hosted font
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: max-age=0, private, must-revalidate
- Cache-Control
- max-age=0, private, must-revalidate
- HTML
- 563.1 KB · sent gzip-compressed
- 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.
- Other JSON 131.5 KB · 23% of the HTML
- Scripts
- 8 files · 7 inline8 from other sites · 8 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.
- 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 8 scripts
AI & agents
Open to AI search, limits training
The crawlers behind AI search may come in, and robots.txt turns away Bytespider. For agents, it offers an MCP server.
Crawlers
Blocks 1 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.
OpenAIGPTBotallowedOAI-SearchBotallowedChatGPT-Userallowed
AnthropicClaudeBotallowedClaude-SearchBotallowedClaude-Userallowed
GoogleGoogle-ExtendedallowedGooglebotallowed—
Microsoft—bingbotallowed—
AppleApplebot-ExtendedallowedApplebotallowed—
Perplexity—PerplexityBotallowedPerplexity-Userallowed
MetaMeta-ExternalAgentallowedMeta-WebIndexerallowedMeta-ExternalFetcherallowed
AmazonAmazonbotallowedAmzn-SearchBotallowedAmzn-Userallowed
MistralMistralAI-TrainingallowedMistralAI-IndexallowedMistralAI-Userallowed
OthersCCBotallowedBytespiderblockedDuckAssistBotallowed
- 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.
- ChatGPT searchClaudePerplexityAI OverviewsGeminiCopilotMeta AISiri
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.
- 1,103 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.
- 117 links in 12 sectionsllms-full.txt too (28.0 KB)
- 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/.
- MCP serverModel Context Protocol: a server that AI apps like Claude, ChatGPT and Cursor connect to so they can use a service's tools. Servers in the official MCP Registry are published under the domain's own name, which the registry checked. A server card, which the site's AI Catalog points to, says which MCP revisions the server speaks; 2026-07-28 is the first stateless one.
- github-mcp-serverapi.githubcopilot.com
- AI catalogAn index at /.well-known/ai-catalog.json of a site's MCP servers, agents and skills, for agents to find them.
- 1 entry