jenkins.io
Jenkins
Last scanned Aug 1, 2026, 12:00 AM · 7 views
Overall score
Great
Summary
Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software. This website uses jQuery behind Fastly CDN. SEO is good (80/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
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.
More than 20% of images are missing alt text
AccessibilityAdd alt attributes to the remaining images (use alt="" for purely decorative ones).
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
202 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
+1 overall since Jul 24, 2026
- Overall
- 89
- SEO
- 80
- Security
- 90
- Performance
- 100
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software
Meta tags
- Title
- Jenkins
- Description
- Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software
- Canonical
- https://www.jenkins.io/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://www.jenkins.io/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Fastly
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Let's Encrypt
- Subject
- www.jenkins.io
- Valid from
- Jul 20, 2026
- Valid to
- Oct 18, 2026
- Days until expiry
- 78
- SAN domains
- www.jenkins.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 0
Links
22 internal · 27 external · 20 broken
Images
22 total · 5 missing alt
Scripts / Styles
13 scripts · 7 stylesheets
JS / CSS size
777 B · 1.1 KB
Page size
58.0 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://jenkins.io
- Final URL
- https://www.jenkins.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 201 ms
- HTML size
- 58.0 KB
- Redirect chain
- https://jenkins.io → https://www.jenkins.io/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does jenkins.io use?
- jenkins.io is built with Bootstrap, jQuery.
- Is jenkins.io secure (HTTPS)?
- Yes. jenkins.io uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 18, 2026.
- Who hosts jenkins.io?
- Hosting provider information for jenkins.io is not available yet.
- What is jenkins.io's SEO score?
- jenkins.io scored 80/100 for SEO in the latest analysis (great).
- What is jenkins.io's overall website score?
- jenkins.io has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has jenkins.io's score changed over time?
- jenkins.io's overall score has improved by 1 point (from 88 to 89) since Jul 24, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card