googlesource.com
Google Open Source
Last scanned Jul 21, 2026, 12:13 PM · 1 view
Overall score
Great
Top issues to fix
3 issues found · 2 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.
Slow estimated load (4.1s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Summary
Google <3 Open Source. 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 fair (70/100). Top issue: No H1 heading found.
SEO
1 issue(s) found
Performance
4.13 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Google Open Source
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Google Open Source
- Description
- Google <3 Open Source
- Canonical
- https://opensource.google/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://opensource.google/_pwa/opensource/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
- *.opensource.google
- Valid from
- Jun 29, 2026
- Valid to
- Sep 21, 2026
- Days until expiry
- 61
- SAN domains
- *.opensource.google, opensource.google
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 1 · H3 8
Links
7 internal · 9 external · 0 broken
Images
11 total · 0 missing alt
Scripts / Styles
3 scripts · 3 stylesheets
JS / CSS size
7.4 KB · 1.1 MB
Page size
60.5 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://googlesource.com
- Final URL
- https://opensource.google
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 4.13 s
- HTML size
- 60.5 KB
- Redirect chain
- https://googlesource.com → https://developers.google.com/open-source/ → https://opensource.google
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Frequently asked questions
- What technology does googlesource.com use?
- googlesource.com is built with Google Analytics.
- Is googlesource.com secure (HTTPS)?
- Yes. googlesource.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 21, 2026.
- Who hosts googlesource.com?
- googlesource.com is hosted on Google Cloud.
- What is googlesource.com's SEO score?
- googlesource.com scored 90/100 for SEO in the latest analysis (excellent).
- What is googlesource.com's overall website score?
- googlesource.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- What company operates googlesource.com?
- googlesource.com is operated by Google Open Source.
OpenGraph & Twitter Card
OpenGraph
Twitter Card