spring.io
Spring | Home
Last scanned Jul 24, 2026, 10:25 PM · 2 views
Overall score
Great
Summary
Level up your Java code and explore what Spring can do for you. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) 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.
- United States
- Hosted on Cloudflare
Top issues to fix
3 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.
SEO
2 issue(s) found
Performance
50 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Level up your Java code and explore what Spring can do for you.
Contact
Email, phone, and address published on this site's own pages.
Source: https://spring.io/support
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
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.18.42.155
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
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
- 246
- 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 16 · H3 6
Links
34 internal · 25 external · 0 broken
Images
13 total · 0 missing alt
Scripts / Styles
23 scripts · 0 stylesheets
JS / CSS size
69.5 KB · 455 KB
Page size
396 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) 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
- 42 ms
- HTML size
- 396 KB
- Redirect chain
- https://spring.io
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does spring.io use?
- spring.io is built with Gatsby, Google Analytics, 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?
- spring.io is hosted on Cloudflare, behind Cloudflare CDN.
- What is spring.io's SEO score?
- spring.io scored 85/100 for SEO in the latest analysis (great).
- What is spring.io's overall website score?
- spring.io has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card