jenkins.io
Jenkins
Last scanned Jul 24, 2026, 10:25 PM · 2 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 hosted on Fastly behind Fastly CDN. SEO is good (85/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (90/100). 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
- United States
- Hosted on Fastly
Top issues to fix
4 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.
More than 20% of images are missing alt text
AccessibilityAdd alt attributes to the remaining images (use alt="" for purely decorative ones).
SEO
2 issue(s) found
Performance
191 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
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
Contact
Email, phone, and address published on this site's own pages.
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
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
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
- 85
- 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 · 0 broken
Images
22 total · 5 missing alt
Scripts / Styles
13 scripts · 7 stylesheets
JS / CSS size
299 KB · 368 KB
Page size
58.0 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 3718
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
Accessibility issues
- More than 20% of images are missing alt text
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://jenkins.io
- Final URL
- https://www.jenkins.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 190 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?
- jenkins.io is hosted on Fastly, behind Fastly CDN.
- What is jenkins.io's SEO score?
- jenkins.io scored 85/100 for SEO in the latest analysis (great).
- What is jenkins.io's overall website score?
- jenkins.io has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
- Is jenkins.io hiring?
- jenkins.io has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card