linear.app 200 🔒 SSL Valid
Checked: just now 🔗 Visit site
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 85d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 1358d
Hosting ?The company and location where this website's server is physically located.Read more →
Cloudflare
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
2/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
104.18.40.45
🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 5
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📊 Analytics
Google Analytics
🌐 CDN
Cloudflare
🎨 CSS Framework
Bootstrap
⚙️ Framework
Next.js
⚡ JS Framework
React
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🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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A (IPv4)172.64.147.211104.18.40.45
AAAA (IPv6)2606:4700:440a::ac40:93d32a06:98c1:3105::6812:282d
NSzara.ns.cloudflare.comtim.ns.cloudflare.com
MX10 alt3.aspmx.l.google.com5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com1 aspmx.l.google.com
TXT
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google-site-verification=mFdMlamOogHV4U7WGNYRd55OvljoEx7M_wgpb7zHzfo
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarCloudFlare, Inc.
Registered2018-05-09
Expires2030-05-09 (in 1358 days)
Last Updated2026-03-09
Statusclient transfer prohibited
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)linear.app
IssuerLet's Encrypt
Valid From2026-08-15
Valid Until2026-11-13 (85 days left)
SANs (2)*.client-preview.linear.applinear.app
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
Servercloudflare
Content-Typetext/html; charset=utf-8
strict-transport-securitymax-age=63072000; includeSubDomains
content-security-policydefault-src 'self' https://static.linear.app https://static.linear.dev; connect-src 'self' https://o415358.ingest.sentry.io/api/5337513/ https://o415358.ingest.sentry.io/api/4504277957279744/ wss://ornj730p.api.sanity.io/ https://ornj730p.apicdn.sanity.io/ https://*.linear.app https://9RXBCYQ6DV-dsn.algolia.net https://linearstatus.com/ https://statuspage.incident.io/ https://app.posthog.com https://api.github.com/ https://raw.githubusercontent.com/ https://www.githubstatus.com/ https://dns.google/ http://127.0.0.1:44450/ http://127.0.0.1:18450/ http://127.0.0.1:33234/ https://api.linear.app https://client-api.linear.app wss://sync.linear.app/ https://storage.googleapis.com/uploads.linear.app/ https://storage.googleapis.com/linear-uploads-europe-west1/ https://storage.googleapis.com/linear-uploads-us-central1/ https://storage.googleapis.com/imports.linear.app/ https://storage.googleapis.com/linear-imports-europe-west1/ https://storage.googleapis.com/linear-imports-us-central1/ https://storage.googleapis.com/public.linear.app/ https://ornj730p.api.sanity.io/; script-src 'unsafe-inline' 'self' blob: https://js.stripe.com/v3 https://jobs.ashbyhq.com/Linear/embed https://e.linear.app https://challenges.cloudflare.com/turnstile/ 'wasm-unsafe-eval' https://static.linear.app https://static.linear.dev; worker-src 'self' blob: https://static.linear.app https://static.linear.dev; style-src 'self' 'unsafe-inline' https://static.linear.app https://static.linear.dev; font-src 'self' data: https://static.linear.app https://static.linear.dev; img-src 'self' data: blob: https://*.linear.app https://*.googleusercontent.com https://cdn.sanity.io/images/ornj730p/ https://webassets.linear.app https://linear.app/cdn-cgi/imagedelivery/ https://avatars.githubusercontent.com https://i.ytimg.com/vi/ https://avatars.slack-edge.com https://pbs.twimg.com/profile_images/ https://pbs.twimg.com/ext_tw_video_thumb/ https://secure.gravatar.com; frame-ancestors 'self' https://cms.linear.app; frame-src *; media-src blob: https://uploads.linear.app https://client-api.linear.app https://public.linear.app https://imports.linear.app https://static.linear.app https://webassets.linear.app https://cdn.sanity.io/files/ornj730p/ https://video.twimg.com/ext_tw_video/ https://linear.app/static/; base-uri 'self'; report-uri https://api.linear.app/report-violation
x-content-type-optionsnosniff
referrer-policysame-origin
cache-controls-maxage=1800, stale-while-revalidate
cf-raya2de1cec5825d6d5-IAD
via1.1 google
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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IP Address104.18.40.45
ProviderCloudflare
OrganizationCloudflare, Inc.
ASNAS13335
CountryUS
CitySan Francisco
🛡️ Security Score B (5/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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robots.txt Found Open
Sitemap Found 999 pages
Last modified 2026-08-19T18:34:54Z
Disallowed paths
/api/
/cdn-cgi/
🔗 Social & Meta Tags Complete
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TitleLinear – The system for product development
DescriptionPurpose-built for planning and building products with AI agents.
OG TitleLinear – The system for product development
OG DescriptionPurpose-built for planning and building products with AI agents.
OG Imagehttps://linear.app/static/og/homepage.jpg
OG preview
Twitter Cardsummary_large_image
Canonical URLhttps://linear.app
Languageen
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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SPF✓ Present
v=spf1 include:_spf.google.com include:spf.mtasv.net include:44092442.spf10.hubspotemail.net include:amazonses.com ~all
DMARC✓ Present
v=DMARC1; p=reject; rua=mailto:[email protected]; aspf=r; pct=100
MX Records
10 → alt3.aspmx.l.google.com
5 → alt1.aspmx.l.google.com
5 → alt2.aspmx.l.google.com
1 → aspmx.l.google.com