vlib.org
The WWW Virtual Library
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Great
Summary
This website uses Apache hosted on PAIR-NETWORKS - pair Networks, US. SEO is fair (65/100) and accessibility is excellent (95/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on PAIR-NETWORKS - pair Networks, US
Top issues to fix
10 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
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.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
239 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- The WWW Virtual Library
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- PAIR-NETWORKS - pair Networks, US
- CDN provider
- —
- IP address
- 216.92.181.129
- ASN
- AS7859 (PAIR-NETWORKS - pair Networks, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- vlib.org
- Valid from
- Jul 9, 2026
- Valid to
- Oct 7, 2026
- Days until expiry
- 42
- SAN domains
- vlib.org, www.vlib.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 1
Links
41 internal · 0 external · 0 broken
Images
2 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
87 B · 1.9 KB
Page size
4.8 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 7
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- Missing viewport meta tag
Scan details
- Requested URL
- https://vlib.org
- Final URL
- https://vlib.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 239 ms
- HTML size
- 4.8 KB
- Redirect chain
- https://vlib.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does vlib.org use?
- vlib.org is built with Apache.
- Is vlib.org secure (HTTPS)?
- Yes. vlib.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 7, 2026.
- Who hosts vlib.org?
- vlib.org is hosted on PAIR-NETWORKS - pair Networks, US.
- What is vlib.org's SEO score?
- vlib.org scored 65/100 for SEO in the latest analysis (fair).
- What is vlib.org's overall website score?
- vlib.org has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card