w3id.org
w3id.org - Permanent Identifiers for the Web
Last scanned Jul 27, 2026, 2:43 PM · 1 view
Overall score
Great
Summary
Secure, permanent URLs for your Web application that will stand the test of time. This website uses Apache hosted on RACKSPACE - Rackspace Hosting, US. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.
Secure, permanent URLs for your Web application that will stand the test of time.
- United States
- Hosted on RACKSPACE - Rackspace Hosting, US
Top issues to fix
9 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.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
+3 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
246 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Secure, permanent URLs for your Web application that will stand the test of time.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- w3id.org - Permanent Identifiers for the Web
- Description
- Secure, permanent URLs for your Web application that will stand the test of time.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- RACKSPACE - Rackspace Hosting, US
- CDN provider
- —
- IP address
- 23.253.20.182
- ASN
- AS19994 (RACKSPACE - Rackspace Hosting, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- w3id.org
- Valid from
- Jun 3, 2026
- Valid to
- Sep 1, 2026
- Days until expiry
- 36
- SAN domains
- w3id.org, www.w3id.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 1 · H3 6
Links
0 internal · 20 external · 1 broken
Images
0 total · 0 missing alt
Scripts / Styles
2 scripts · 1 stylesheets
JS / CSS size
118 KB · 115 KB
Page size
11.2 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://w3id.org
- Final URL
- https://w3id.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 246 ms
- HTML size
- 11.2 KB
- Redirect chain
- https://w3id.org
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Frequently asked questions
- What technology does w3id.org use?
- w3id.org is built with Bootstrap, jQuery, Apache.
- Is w3id.org secure (HTTPS)?
- Yes. w3id.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 1, 2026.
- Who hosts w3id.org?
- w3id.org is hosted on RACKSPACE - Rackspace Hosting, US.
- What is w3id.org's SEO score?
- w3id.org scored 70/100 for SEO in the latest analysis (fair).
- What is w3id.org's overall website score?
- w3id.org has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card