web.dev
web.dev
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Great
Top issues to fix
2 issues found · 1 high priority
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Summary
Guidance to build modern web experiences that work in every browser. This website uses Google Analytics hosted on Google Cloud. SEO is excellent (90/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance good (75/100). Top issue: No H1 heading found.
SEO
1 issue(s) found
Performance
474 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
web.dev
Meta tags
- Title
- web.dev
- Description
- Guidance to build modern web experiences that work in every browser.
- Canonical
- https://web.dev/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://web.dev/_pwa/web/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Google Cloud
- CDN provider
- —
- IP address
- 216.239.32.27
- ASN
- AS15169 (GOOGLE - Google LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- devsite-sni.developers.google.com
- Valid from
- Jun 29, 2026
- Valid to
- Sep 21, 2026
- Days until expiry
- 64
- SAN domains
- devsite-sni.developers.google.com, docs.actifio.com, d.actifio.com, apigee.com, *.apigee.com, appdefensealliance.dev, *.appdefensealliance.dev, bazel.build, *.bazel.build, builders.google, *.builders.google, cel.dev, *.cel.dev, deepmind.google.com, *.deepmind.google.com, developer.nest.com, developers.nest.com, devsitetest.how, *.devsitetest.how, fuchsia.dev, *.fuchsia.dev, issues.fuchsia.dev, *.issues.fuchsia.dev, generativeai.google, *.generativeai.google, *.generativeai.google.com, google.dev, ai.google.dev, www.ai.google.dev, *.google.dev, intrinsic.ai, *.intrinsic.ai, jibemobile.com, *.jibemobile.com, learn.mapsplatform.google.com, *.learn.mapsplatform.google.com, onboarding.off.goog, *.onboarding.off.goog, openthread.io, *.openthread.io, openweave.io, *.openweave.io, openxla.org, *.openxla.org, preview.source.android.com, privacysandbox.google.com, *.privacysandbox.google.com, quantumai.google, *.quantumai.google, tensorflow.org, *.tensorflow.org, web.dev, *.web.dev, webrtc.org, www.webrtc.org, wing.com, *.wing.com, wing.dev, *.wing.dev, devsite.google, *.devsite.google, mediapipe.dev, *.mediapipe.dev, ai.dev, *.ai.dev, ai.studio, *.ai.studio, app.new, *.app.new, chat.new, *.chat.new, bot.new, *.bot.new, agent.new, *.agent.new, ai.app, *.ai.app
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 9 · H3 40
Links
70 internal · 12 external · 0 broken
Images
10 total · 0 missing alt
Scripts / Styles
45 scripts · 4 stylesheets
JS / CSS size
1.4 MB · 1.2 MB
Page size
131 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No H1 heading found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://web.dev
- Final URL
- https://web.dev
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 472 ms
- HTML size
- 131 KB
- Redirect chain
- https://web.dev
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Frequently asked questions
- What technology does web.dev use?
- web.dev is built with Google Analytics.
- Is web.dev secure (HTTPS)?
- Yes. web.dev uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 21, 2026.
- Who hosts web.dev?
- web.dev is hosted on Google Cloud.
- What is web.dev's SEO score?
- web.dev scored 90/100 for SEO in the latest analysis (excellent).
- What is web.dev's overall website score?
- web.dev has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
- What company operates web.dev?
- web.dev is operated by web.dev.
OpenGraph & Twitter Card
OpenGraph
Twitter Card