spring.io
Spring | Home
Last scanned Jul 31, 2026, 11:00 PM · 16 views
Overall score
Great
Summary
Level up your Java code and explore what Spring can do for you. This website uses Gatsby behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (80/100). Top issue: Multiple H1 headings found.
Level up your Java code and explore what Spring can do for you.
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.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
62 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 24, 2026
- Overall
- 85
- SEO
- 75
- Security
- 90
- Performance
- 80
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Level up your Java code and explore what Spring can do for you.
Meta tags
- Title
- Spring | Home
- Description
- Level up your Java code and explore what Spring can do for you.
- Canonical
- https://spring.io/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- Manifest
- https://spring.io/manifest.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- DigiCert Inc
- Subject
- *.spring.io
- Valid from
- Feb 24, 2026
- Valid to
- Mar 27, 2027
- Days until expiry
- 239
- SAN domains
- *.spring.io, spring.io, *.enterprise.spring.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 2 · H2 13 · H3 0
Links
34 internal · 21 external · 20 broken
Images
11 total · 0 missing alt
Scripts / Styles
14 scripts · 0 stylesheets
JS / CSS size
7.8 KB · 329 KB
Page size
396 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://spring.io
- Final URL
- https://spring.io
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 54 ms
- HTML size
- 396 KB
- Redirect chain
- https://spring.io
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Frequently asked questions
- What technology does spring.io use?
- spring.io is built with Gatsby, Cloudflare Analytics.
- Is spring.io secure (HTTPS)?
- Yes. spring.io uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Mar 27, 2027.
- Who hosts spring.io?
- Hosting provider information for spring.io is not available yet.
- What is spring.io's SEO score?
- spring.io scored 75/100 for SEO in the latest analysis (fair).
- What is spring.io's overall website score?
- spring.io has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- Has spring.io's score changed over time?
- spring.io's overall score has declined by 3 points (from 88 to 85) since Jul 24, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card