Location
United States
Country level only
Domain
reddit.com
Served through Fastly'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.
AS54113Fastly
Fastly, 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 valid151.101.64.0/22
Seen by 3,182 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
- AS54113Fastly
Tracing from a probe near you with Globalping. Hop locations that its round-trip times rule out are left off the map.
Protected from spoofing
Mail that fails its checks is rejected under reddit.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 else3 of 10 DNS lookups · includes spf0.reddit.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
DNS records
TypeNameValueTTL
Areddit.com151.101.65.1404 min
Areddit.com151.101.193.1404 min
Areddit.com151.101.129.1404 min
Areddit.com151.101.1.1404 min
AAAAreddit.com2a04:4e42:400::3965 min
AAAAreddit.com2a04:4e42:600::3965 min
AAAAreddit.com2a04:4e42:200::3965 min
AAAAreddit.com2a04:4e42::3965 min
NSreddit.comns-1029.awsdns-00.org2 days
NSreddit.comns-1887.awsdns-43.co.uk2 days
NSreddit.comns-378.awsdns-47.com2 days
NSreddit.comns-557.awsdns-05.net2 days
MXreddit.com1 aspmx.l.google.com5 min
MXreddit.com10 aspmx2.googlemail.com5 min
MXreddit.com10 aspmx3.googlemail.com5 min
MXreddit.com5 alt1.aspmx.l.google.com5 min
MXreddit.com5 alt2.aspmx.l.google.com5 min
TXTreddit.com"00DV90000052YKT=1TBV90000000AsD"40 min
TXTreddit.com"00Dbf000005OCRl=1TBbf0000000MJt"40 min
TXTreddit.com"00Dbf000005OCTN=1TBbf0000000Mer"40 min
TXTreddit.com"00Do0000000I6Pa=1TBcv0000000HQh"40 min
TXTreddit.com"614ac4be-8664-4cea-8e29-f84d08ad875c"40 min
TXTreddit.com"MS=ms71041902"40 min
TXTreddit.com"a5897185-49e1-4181-9065-51bd24737466"40 min
TXTreddit.com"apple-domain-verification=qC3rSSKrh10DoMI7"40 min
TXTreddit.com"atlassian-domain-verification=aGWDxGvt+oY3p7qTWt5v2uJDVJkoJAeHxwGqKmGQLMEsUXUJJe/Pm/k+GGNPpn6M"40 min
TXTreddit.com"atlassian-domain-verification=vBaV6PXyyu4OAPLiQFbxFMCboSTjoR/qxKJ2OlpI46ZEpZL/FVTIfMlgoM5Hy9eY"40 min
TXTreddit.com"box-domain-verification=95c33f4ee4b11d8827190dbc5371ca7df25b961019116e5565ce4aa36de9be3a"40 min
TXTreddit.com"cursor-domain-verification-f9fw38=WVB8yAMGTZXO7Je9DLuj1DIZB"40 min
TXTreddit.com"docusign=6ba0c5a9-5a5e-41f8-a7c8-8b4c6e35c10c"40 min
TXTreddit.com"google-site-verification=0uv13-wxlHK8FFKaUpgzyrVmL1YdNYW6v3PupLdw3JI"40 min
TXTreddit.com"google-site-verification=5Qzlkl8HJJSBKnMI7rQGDr9Sgiir4Ey6klx1rWQCJ2M"40 min
TXTreddit.com"google-site-verification=QO4VY1PRzsG-MxiQn3j0kxd_ZaFjcTk6MWBfKru0_5I"40 min
TXTreddit.com"google-site-verification=oh_YJE560y0e6FHP1RT7NIjyTlBhACNMvD2EgSss0sc"40 min
TXTreddit.com"google-site-verification=zZHozYbAJmSLOMG4OjQFoHiVqkxtdgvyBzsE7wUGFiw"40 min
TXTreddit.com"jamf-site-verification=EGK11tNR4hezQg0jZaIDpA"40 min
TXTreddit.com"jetbrains-domain-verification=bjn7o9fxbduga0omhaepeewtx"40 min
TXTreddit.com"liveramp-site-verification=hNZ5ZAy1ufTpXrpCELrrtSzTlb4KU4h7UtDPpZdj9XA"40 min
TXTreddit.com"onetrust-domain-verification=6b98ba3dd087405399bbf45b6cbdcd37"40 min
TXTreddit.com"postman-domain-verification=ad4c89daaf83d06f70cb6e8737cb323b039aeaae9e0e288c75081b0a715812a2d30e7c31402da867c70287ad8216da42074ffe7b4fcfcbf86f9316301329308f"40 min
TXTreddit.com"protonmail-verification=24cb91442caf54c8b820f4a0347292f143531210"40 min
TXTreddit.com"stripe-verification=80aa7e2c9775fee2653f61b04b46da6fd227b56fecd9499e5f63cd0dcf563984"40 min
TXTreddit.com"stripe-verification=9bd70dd1884421b47f596fea301e14838c9825cdba5b209990968fdc6f8010c7"40 min
TXTreddit.com"twilio-domain-verification=5e37855d7c9445e967b31c5e0371ebb5"40 min
TXTreddit.com"v=spf1 include:spf0.reddit.com -all"40 min
TXTreddit.com"yahoo-verification-key=I0We5FayJi0Q8XdjDgE5oN0ujM08heSVe46o/FvsMkk="40 min
TXT_dmarc.reddit.com"v=DMARC1; p=reject; fo=1; ruf=mailto:reddit@us.cp-dmarc.com; rua=mailto:reddit@us.cp-dmarc.com"1 hr
CAAreddit.com0 issue "digicert.com; cansignhttpexchanges=yes"1 day
CAAreddit.com0 issue "pki.goog"1 day
Details
Network
- IPv4
- 151.101.65.140
- ASNThe autonomous system number of the network that announces this address.
- AS54113
- Operator
- Fastly, Inc.
- CDNFrom the provider's own published list of its address ranges.
- Fastly
- PrefixThe block of addresses announced over BGP that contains this address.
- 151.101.64.0/22
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 3,182 peers
- Type
- Content
- Registry
- RIPE NCC
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
- Apr 29, 200521 years ago
- Expires
- Apr 29, 2028next year
- Updated
- Mar 28, 2026
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Delete lockedTransfer lockedUpdate lockedDelete locked by registryTransfer locked by registryUpdate locked by registry
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- ns-1029.awsdns-00.orgns-1887.awsdns-43.co.ukns-378.awsdns-47.comns-557.awsdns-05.net
- Registrant
- Redacted for privacy
Apr 29, 2005566 days leftApr 29, 2028
HTTPS
Certificate
Valid- Issuer
- Google Trust Services
- Issuing CA
- WE1
- Covers
- cf.reddit.com, reddit.com, www.reddit.com
- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 8 more certificates
Sep 23, 202672 days leftDec 22, 2026
From Certificate Transparency logs, via Cert Spotter.
Security
B- 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, Google Trust Services
- security.txtA standard file (RFC 9116) telling security researchers how to report vulnerabilities.
- whitehats@reddit.com
Security headers 4 of 7
- HSTSpresent
- CSPpresent
- Framingpresent
- No sniffingpresent
- Referrermissing
- Permissionsmissing
- Isolationmissing
Response
200 OK126 ms from CMH · 8.2 KBDNS lookup3 ms
301 reddit.com79 ms
200 www.reddit.com126 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Website
Page
- Language
- English
Built with
- CloudFrom the provider's published address ranges.
- Fastly
- CDN
- FastlyFastly address range
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
- Fastly
Fastly address range
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: private, no-store
- Cache-Control
- private, no-store
- HTML
- 8.2 KB
- Scripts
- 0 files · 1 inline
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.
The HTML loads no scripts from other sites.
Response headers
- connection
- close
- content-length
- 8397
- retry-after
- 0
- cache-control
- private, no-store
- content-type
- text/html
- content-security-policy
- default-src 'none'; script-src 'nonce-0d840f57-827d-4ba1-8e4e-dcdf7f807102'; style-src 'unsafe-inline'; img-src https://www.redditstatic.com; form-action 'self';
- accept-ranges
- bytes
- date
- Mon, 12 Oct 2026 16:03:52 GMT
- via
- 1.1 varnish
- server-timing
- reddit-ct;desc="dn=FT,p=CMH,cs=HIT"
- strict-transport-security
- max-age=31536000; includeSubdomains
- x-content-type-options
- nosniff
- x-frame-options
- SAMEORIGIN
- x-xss-protection
- 1; mode=block
- set-cookie
- edgebucket=ylqR3ihctT1Z8DlleZ; Domain=reddit.com; Max-Age=63071999; Path=/; secure
- server
- snooserv
- report-to
{"group": "w3-reporting-nel", "max_age": 14400, "include_subdomains": true, "endpoints": [{ "url": "https://w3-reporting-nel.reddit.com/reports" }]}, {"group": "w3-reporting", "max_age": 14400, "include_subdomains": true, "endpoints": [{ "… Show all
{"group": "w3-reporting-nel", "max_age": 14400, "include_subdomains": true, "endpoints": [{ "url": "https://w3-reporting-nel.reddit.com/reports" }]}, {"group": "w3-reporting", "max_age": 14400, "include_subdomains": true, "endpoints": [{ "url": "https://w3-reporting.reddit.com/reports" }]}, {"group": "w3-reporting-csp", "max_age": 14400, "include_subdomains": true, "endpoints": [{ "url": "https://w3-reporting-csp.reddit.com/reports" }]}- nel
- {"report_to": "w3-reporting-nel", "max_age": 14400, "include_subdomains": false, "success_fraction": 1.0, "failure_fraction": 1.0}
AI & agents
Closed to AI crawlers
robots.txt turns away 25 AI crawlers, including the ones behind ChatGPT search, Claude and Perplexity.
Crawlers
Blocks allTrainingSearchOn 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-ExtendedblockedGooglebotblocked—
Microsoft—bingbotblocked—
AppleApplebot-ExtendedblockedApplebotblocked—
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.
- None
- Kept out of
- ChatGPT search: robots.txt blocks OAI-SearchBotClaude: robots.txt blocks Claude-SearchBotPerplexity: robots.txt blocks PerplexityBotAI Overviews: robots.txt blocks GooglebotGemini: robots.txt blocks Google-ExtendedCopilot: robots.txt blocks bingbotMeta AI: robots.txt blocks Meta-WebIndexerSiri: robots.txt blocks Applebot
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.
- 0 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.