open-vsx.org

Scanned URL: https://open-vsx.org

📅 Scan completed: April 20, 2026 at 4:46 PM

34
/ 100
F
Poor
Overall Domain Score
SEO 31 · LLM 18 · Perf 55
31

πŸ” SEO Score

4 / 13 checks passed

18

πŸ€– LLM Readiness

2 / 11 checks passed

55

⚑ Performance

6 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
Open VSX Registry
Meta Description
None found
H1 Heading
None found
Canonical URL
None found
πŸ” SEO Audit
31/100
❌ Title Tag
Length: 17 chars (Ideal: 30-60).
❌ Meta Description
No description found.
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
❌ Canonical URL
Missing canonical tag.
❌ Open Graph Tags
Found 0 OG properties (4+ recommended).
βœ… Indexability
Page allows indexing.
βœ… Mobile Viewport
Viewport meta tag present.
βœ… Image Alt Text
No images found.
❌ Sitemap
No sitemap found in robots.txt.
❌ Heading Hierarchy
Missing H1 or H2 tags.
❌ Internal Links
Found 0 internal links.
❌ HSTS Security
Missing HSTS header.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
18/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
❌ Contextual Summary
Description too short for AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
βœ… AI Crawler Access
AI agents not blocked.
βœ… Language Declaration
Language set to 'en'.
❌ Semantic Structure
No semantic HTML5 wrappers.
❌ Entity Verification Links
No entity validation links.
⚑ Performance
55/100
Network Waterfall (Total: 122ms)
  • DNS: 4ms
  • Connect: 27ms
  • TTFB: 121ms
  • Download: 1ms
βœ… Time to First Byte (TTFB)
TTFB: 121ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 2.7KB (Target: < 150KB).
βœ… Text Compression
Compression enabled (gzip).
❌ Cache Policies
Missing Cache-Control headers.
❌ CDN Usage
No CDN headers found.
βœ… Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
❌ Native Lazy Loading
No lazy loading detected.
βœ… Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
βœ… Character Set
UTF-8 declared.
πŸ›‘οΈ Security & Blacklist
2 Flag(s)
⚠️ Flagged on 2 blacklist(s).
🚨 Spamhaus DBLVerify β†—
FLAGGED: Listed (code: 51.79.82.51)
🚨 SURBLVerify β†—
FLAGGED: Listed (code: 51.79.82.51)
βœ… URIBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… Google Safe BrowsingVerify β†—
No unsafe content found per Google Safe Browsing.
βš™οΈ Technologies
Analytics & Tracking
Google Tag Manager
Infrastructure & CDN
Nginx
πŸ“‹ WHOIS
Registrar
Network Solutions, LLC
Expires
2028-02-04
Registered
2020-02-04
Last Updated
2026-04-17
Status
client transfer prohibited
Name Servers
ns-1147.awsdns-15.org, ns-1714.awsdns-22.co.uk, ns-761.awsdns-31.net
πŸ”— DNS Records
TypeValue
A198.41.30.195
MXmail.eclipse.org
TXTv=spf1 a:mail.eclipse.org mx -all
TXT_yd0qtjemsx3qf79okf5br42q5rxxyu7
NSns-761.awsdns-31.net
NSns-1714.awsdns-22.co.uk
NSns-1147.awsdns-15.org
NSns-361.awsdns-45.com
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