googlesource.com
Google Open Source
Last scanned Jul 29, 2026, 4:00 PM · 7 views
Overall score
Great
Summary
Google <3 Open Source. This website uses Google Analytics. SEO is good (80/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: No H1 heading found.
Google Open Source
Google <3 Open Source
Top issues to fix
5 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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
16 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
1.65 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
+2 overall since Jul 21, 2026
- Overall
- 87
- SEO
- 80
- Security
- 90
- Performance
- 90
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
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
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
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
- 53
- 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 · 16 broken
Images
11 total · 0 missing alt
Scripts / Styles
3 scripts · 3 stylesheets
JS / CSS size
7.4 KB · 2.4 KB
Page size
60.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not 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
- 1.65 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?
- Hosting provider information for googlesource.com is not available yet.
- What is googlesource.com's SEO score?
- googlesource.com scored 80/100 for SEO in the latest analysis (great).
- What is googlesource.com's overall website score?
- googlesource.com has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- What company operates googlesource.com?
- googlesource.com is operated by Google Open Source. Google <3 Open Source
- Has googlesource.com's score changed over time?
- googlesource.com's overall score has improved by 2 points (from 85 to 87) since Jul 21, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card