developer.twitter.com B

24 hours
100.00%
7 days
100.00%
30 days
100.00%
IPv4 / IPv6
2 0
SSL Certificate
66d
Security Headers
1/6
Status Badges
Status Uptime 30d Uptime 7d Response Time SSL Performance Accessibility SEO Security Headers Uptime 24h Incidents IPv4/IPv6
Click any snippet to copy. Use Markdown for GitHub READMEs, HTML for websites.
Badge Markdown HTML
Status [![Status](https://updown.website/badge/developer.twitter.com/status.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/status.svg" alt="Status"></a>
Uptime [![Uptime](https://updown.website/badge/developer.twitter.com/uptime.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/uptime.svg" alt="Uptime"></a>
Response Time [![Response Time](https://updown.website/badge/developer.twitter.com/response-time.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/response-time.svg" alt="Response Time"></a>
SSL [![SSL](https://updown.website/badge/developer.twitter.com/ssl.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/ssl.svg" alt="SSL"></a>
Performance [![Performance](https://updown.website/badge/developer.twitter.com/cwv.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/cwv.svg" alt="Performance"></a>
Accessibility [![Accessibility](https://updown.website/badge/developer.twitter.com/cwv.svg?category=accessibility)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/cwv.svg?category=accessibility" alt="Accessibility"></a>
SEO [![SEO](https://updown.website/badge/developer.twitter.com/cwv.svg?category=seo)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/cwv.svg?category=seo" alt="SEO"></a>
Security Headers [![Security Headers](https://updown.website/badge/developer.twitter.com/security-headers.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/security-headers.svg" alt="Security Headers"></a>
Uptime 24h [![Uptime 24h](https://updown.website/badge/developer.twitter.com/uptime.svg?period=24h)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/uptime.svg?period=24h" alt="Uptime 24h"></a>
Incidents [![Incidents](https://updown.website/badge/developer.twitter.com/incidents.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/incidents.svg" alt="Incidents"></a>
IPv4/IPv6 [![IPv4/IPv6](https://updown.website/badge/developer.twitter.com/ipv46.svg)](https://updown.website/site/developer.twitter.com/) <a href="https://updown.website/site/developer.twitter.com/"><img src="https://updown.website/badge/developer.twitter.com/ipv46.svg" alt="IPv4/IPv6"></a>
Site Health (24 h)
HTTP Response DNS Lookup Ping Up Down Reports Incident
Monitoring
Recent HTTP Checks (24 h)
Total Checks
8
Success Rate
100%
Avg Response
2862 ms
Min / Max
1336 / 7350 ms
Recent Checks
16:38 10:01
Time Status Code Response Agent Error
10:01:24 UP 200 1623 ms prod-local —
08:39:12 UP 200 1336 ms prod-local —
05:23:07 UP 200 1654 ms prod-local —
02:42:20 UP 200 2686 ms prod-local —
01:19:49 UP 200 2526 ms prod-local —
22:52:04 UP 200 1631 ms prod-local —
17:47:47 UP 200 4091 ms prod-local —
16:38:10 UP 200 7350 ms prod-local —
Incident History

No incidents recorded — all clear!

Community
0
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Service Checks (Banner Grab)
9 up 0 down
Status Port Service Version IP Banner Latency Checked
80 http cloudflare Pingora-Origin 162.159.140.229 HTTP/1.1 520 <none> Date: Tue, 21 Apr 2026 17:57:04 GMT Content-Type: text/pl… 3.9 ms 17 hours, 58 minutes ago
443 https — 172.66.0.227 — 504.7 ms 17 hours, 58 minutes ago
2082 cpanel — 162.159.140.229 — 2004.4 ms 17 hours, 58 minutes ago
2083 cpanel-ssl — 162.159.140.229 — 2004.3 ms 17 hours, 58 minutes ago
2086 whm — 162.159.140.229 — 2004.1 ms 17 hours, 58 minutes ago
2087 whm-ssl — 162.159.140.229 — 2003.9 ms 17 hours, 58 minutes ago
8080 http cloudflare Pingora-Origin 172.66.0.227 HTTP/1.1 520 <none> Date: Tue, 21 Apr 2026 17:57:06 GMT Content-Type: text/pl… 2.5 ms 17 hours, 58 minutes ago
8443 https-alt — 162.159.140.229 — 502.5 ms 17 hours, 58 minutes ago
8880 cddbp-alt — 172.66.0.227 — 2003.3 ms 17 hours, 58 minutes ago
Security
SSL / TLS Certificate
66
days left
Valid
Mar 30, 2026 Jun 28, 2026
Issued → Expires
Subject commonName=twitter.com
Issuer countryName=US, organizationName=Let's Encrypt, commonName=E7
Valid From 2026-03-30 05:03
Expires 2026-06-28 05:03
Serial Number 057EBE881297EE41D4D816EB20C0AB2FC905
SHA-256 Fingerprint 76:13:68:67:26:4a:97:35:3e:90:58:d6:76:9a:ae:ef:f8:09:5e:e1:65:7c:f9:6c:5f:9a:48:05:1f:32:86:ad
Subject Alt Names *.twitter.com cdn.syndication.twitter.com twitter.com
Last Checked 2026-04-22 10:01:24
Latest HTTP Response Details
Final URL https://developer.twitter.com/
Status Code 200
Response Time 1623 ms
Content Size 11 KB (10.6 KB)
Content Type text/html; charset=utf-8
Server cloudflare envoy
TLS Version TLSv1.3
TLS Cipher TLS_AES_256_GCM_SHA384
Redirects 0
Checked 2026-04-22 10:01:24
Security Headers 1/6
Header Status Value
Strict-Transport-Security Present max-age=631138519; includeSubdomains
Content-Security-Policy Missing —
X-Frame-Options Missing —
X-Content-Type-Options Missing —
Referrer-Policy Missing —
Permissions-Policy Missing —
Email Security Posture
MX Records
SPF
DMARC
BIMI
MTA-STS
Weak
Overall
DNS & Network
DNS Intelligence (24h)
Avg Resolution
14.0 ms
Min / Max
1.4 / 55.6 ms
Record Types
2
Lookups (24h)
24
DNS Records
A
162.159.140.229
900s 55.6ms
CNAME
s.twitter.com
299s 0.9ms
DNS Propagation Inconsistent
Resolver IPs Returned Response Time Status
Quad9 172.66.0.227 10.63ms
Google 162.159.140.229 14.45ms
AdGuard 162.159.140.229 11.82ms
OpenDNS 172.66.0.227 4.07ms
Cloudflare 172.66.0.227 11.13ms
WHOIS / Domain Registration
Registrar
CSC Corporate Domains, Inc.
Created
2000-01-21
Updated
2026-01-17
Expires
2027-01-21
Name Servers (WHOIS)
a.r06.twtrdns.net a.u06.twtrdns.net b.r06.twtrdns.net b.u06.twtrdns.net c.r06.twtrdns.net c.u06.twtrdns.net d.r06.twtrdns.net d.u06.twtrdns.net
Domain Status
clientTransferProhibited serverDeleteProhibited serverTransferProhibited serverUpdateProhibited
DNSSEC
Unsigned
WHOIS Last Checked
2026-04-21 11:02
Resolution Time (A/AAAA recent)
01:19 10:01
Time Type Values TTL Resolution Nameserver
10:01:24 CNAME s.twitter.com 299s 0.9 ms 10.89.0.1
10:01:24 AAAA — — 1.5 ms —
10:01:24 A 162.159.140.229 900s 55.6 ms 10.89.0.1
08:39:11 CNAME s.twitter.com 299s 0.9 ms 10.89.0.1
08:39:11 AAAA — — 4.3 ms —
08:39:11 A 162.159.140.229 172.66.0.227 900s 13.1 ms 10.89.0.1
05:23:07 CNAME s.twitter.com 300s 12.1 ms 10.89.0.1
05:23:07 AAAA — — 4.1 ms —
05:23:07 A 162.159.140.229 900s 55.1 ms 10.89.0.1
02:42:20 CNAME s.twitter.com 299s 0.9 ms 10.89.0.1
02:42:20 AAAA — — 3.7 ms —
02:42:20 A 162.159.140.229 900s 12.2 ms 10.89.0.1
01:19:49 CNAME s.twitter.com 299s 1.0 ms 10.89.0.1
01:19:49 AAAA — — 3.3 ms —
01:19:49 A 172.66.0.227 162.159.140.229 900s 17.8 ms 10.89.0.1
22:52:04 CNAME s.twitter.com 299s 1.0 ms 10.89.0.1
22:52:04 AAAA — — 4.6 ms —
22:52:04 A 172.66.0.227 900s 7.5 ms 10.89.0.1
17:47:46 CNAME s.twitter.com 299s 0.8 ms 10.89.0.1
17:47:46 AAAA — — 1.4 ms —
17:47:46 A 172.66.0.227 162.159.140.229 900s 19.7 ms 10.89.0.1
16:38:10 CNAME s.twitter.com 299s 2.1 ms 10.89.0.1
16:38:10 AAAA — — 6.2 ms —
16:38:10 A 172.66.0.227 162.159.140.229 900s 13.5 ms 10.89.0.1
Open Ports 18
Open Ports
18
IPs Scanned
18
Port Protocol Service IP Address Status Latency Banner
80 TCP http 172.66.0.227 Open 12.7 ms —
80 TCP http 162.159.140.229 Open 20.3 ms —
443 TCP https 162.159.140.229 Open 19.9 ms —
443 TCP https 172.66.0.227 Open 2.8 ms —
2082 TCP cpanel 172.66.0.227 Open 2.6 ms —
2082 TCP cpanel 162.159.140.229 Open 10.8 ms —
2083 TCP cpanel-ssl 162.159.140.229 Open 1021.8 ms —
2083 TCP cpanel-ssl 172.66.0.227 Open 1.9 ms —
2086 TCP whm 162.159.140.229 Open 2.6 ms —
2086 TCP whm 172.66.0.227 Open 1013.5 ms —
2087 TCP whm-ssl 162.159.140.229 Open 11.5 ms —
2087 TCP whm-ssl 172.66.0.227 Open 1.9 ms —
8080 TCP http-alt 172.66.0.227 Open 1038.8 ms —
8080 TCP http-alt 162.159.140.229 Open 11.6 ms —
8443 TCP https-alt 162.159.140.229 Open 1023.4 ms —
8443 TCP https-alt 172.66.0.227 Open 1036.0 ms —
8880 TCP cddbp-alt 162.159.140.229 Open 11.8 ms —
8880 TCP cddbp-alt 172.66.0.227 Open 3.5 ms —
Active IP Addresses
IP Address Version Reverse DNS CIDR Country City ASN Reputation First Seen Last DNS Hits Misses Uptime % Avg Latency
162.159.140.229 IPv4 — 162.159.140.0/24 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 17:54 2026-04-22 10:01 7 0 100.0% 3.7 ms
172.66.0.227 IPv4 — 172.66.0.0/24 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 17:12 2026-04-22 08:39 5 0 100.0% 5.0 ms
Technology
Technology Stack 8 detected
HTTP/2
HTTP/3 (QUIC)
8
Technologies
Advertising 1
70%
Twitter Ads
Analytics 1
70%
Twitter pixel
CDN 1
90%
CF-Ray header present
Framework 1
70%
Next.js build path
Security 1
90%
Cloudflare bot cookie
Server 1
90%
Server header
Social 2
70%
Open Graph meta tags
70%
Twitter Card meta
Technology Provider 2 tech · 2 sites

This domain provides technology used by other monitored sites.

Twitter Cards
1password.com abtasty.com addtoany.com adroll.com ads.google.com ads.twitter.com advertising.amazon.com aframe.io ahrefs.com algolia.com alpinejs.dev amplitude.com apollo.io aps.amazon.com astro.build atinternet.com auth0.com azure.microsoft.com basecamp.com blogger.com bugcrowd.com builder.io bun.sh bunny.net business.linkedin.com business.twitter.com buttondown.email buysellads.com buzzsprout.com cachethq.io cal.com calendly.com capacitorjs.com carbonads.net cargo.site cdnjs.com ckeditor.com clarity.microsoft.com clerk.com cloud.google.com cloudinary.com consentmanager.net convertkit.com crazyegg.com customer.io demandbase.com descope.com developer.apple.com developers.google.com developers.hubspot.com digitalocean.com directus.io discord.com discourse.org dnsmadeeasy.com docker.com docsearch.algolia.com dotnet.microsoft.com dreamhost.com drip.com easydns.com expressjs.com fastly.com figma.com firebase.google.com fly.io fontawesome.com fonts.adobe.com forwardemail.net framer.com fullstory.com gandi.net gatsbyjs.com getbootstrap.com getform.io ghost.org gin-gonic.com github.com gitlab.com globalsign.com growthbook.io gsap.com haveibeenpwned.com heap.io helpscout.com heroku.com hexo.io honeybadger.io iconify.design icons.getbootstrap.com imgix.com imperva.com improvmx.com inertiajs.com intercom.com ionic.io ionicframework.com isotope.metafizzy.co jamf.com jekyllrb.com jsdelivr.com kinsta.com kit.svelte.dev klaviyo.com knowbe4.com langchain.com launchdarkly.com lemonsqueezy.com lenis.studiofreight.com linear.app liveblocks.io livewire.laravel.com loom.com lu.ma mail.yandex.com mailerlite.com mailgun.com marketingplatform.google.com mathjax.org matomo.org mattboldt.com media.net meilisearch.com mintlify.com miro.com mixpanel.com mongodb.com mui.com mux.com myrasecurity.com netflix.com netlify.com newrelic.com nextjs.org nolt.io notion.so nuxt.com osano.com pages.github.com pantheon.io parse.ly partytown.builder.io patreon.com payloadcms.com paypal.com pendo.io php.net pinterest.com plausible.io podcasters.spotify.com popper.js.org porkbun.com postman.com preactjs.com prebid.org prismic.io proofpoint.com qualtrics.com qwik.dev rankmath.com react.dev redux.js.org remix.run render.com reviews.io rive.app sanity.io segment.com sendgrid.com slack.com sleeknote.com smartlook.com statamic.com stenciljs.com storyblok.com strapi.io stripe.com styled-components.com supabase.com svelte.dev sweetalert2.github.io swiperjs.com tailwindcss.com tawk.to termly.io terraform.io tiny.cloud tooljet.com transifex.com transistor.fm trustarc.com turbo.build tus.io twilio.com typesense.org ui.shadcn.com unocss.dev uppy.io uptimerobot.com usefathom.com usercentrics.com uservoice.com vercara.com vercel.com vidyard.com vimeo.com vitejs.dev vuejs.org webflow.com webmaster.yandex.com weglot.com wistia.com woocommerce.com wordpress.org workspace.google.com wpengine.com wrike.com yoast.com zapier.com zendesk.com zoho.com zscaler.com
Twitter/X Widget
ads.twitter.com angularjs.org business.twitter.com isotope.metafizzy.co semantic-ui.com tus.io
Discovery
Crawl Configuration
robots.txt Sitemap
robots.txt 2 disallow · 0 allow · 2 agents
User-Agent Directive Path / Value
QuerySeekerSpider Disallow /
DirBuster-0.12 Disallow /
* Sitemap https://developer.x.com/en.sitemapindex.xml 
User-agent: *
Disallow:

User-agent: Twitterbot
Disallow:

User-agent: QuerySeekerSpider
Disallow: /

User-agent: DirBuster-0.12
Disallow: /

Sitemap: https://developer.x.com/en.sitemapindex.xml
Sitemap
Sitemap Accessible
Standard
Discovered Sub-domains

No sub-domains discovered yet. The agent discovers sub-domains via certificate transparency logs and homepage link scanning.