v8.dev

Scanned URL: https://v8.dev

📅 Scan completed: April 11, 2026 at 6:26 PM

55
/ 100
D
Below Avg
Overall Domain Score
SEO 62 · LLM 36 · Perf 64
62

πŸ” SEO Score

8 / 13 checks passed

36

πŸ€– LLM Readiness

4 / 11 checks passed

64

⚑ Performance

7 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
V8 JavaScript engine
Meta Description
V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++.
H1 Heading
V8
Canonical URL
None found
πŸ” SEO Audit
62/100
❌ Title Tag
Length: 20 chars (Ideal: 30-60).
βœ… Meta Description
Length: 94 chars (Ideal: 50-160).
❌ H1 Tag
Found 2 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.
βœ… Heading Hierarchy
H1 and H2 structure detected.
βœ… Internal Links
Found 37 internal links.
βœ… HSTS Security
HSTS header present.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
36/100
❌ 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'.
βœ… Semantic Structure
Uses <main> or <article>.
βœ… Entity Verification Links
Social/publisher profiles linked.
⚑ Performance
64/100
Network Waterfall (Total: 266ms)
  • DNS: 253ms
  • Connect: 254ms
  • TTFB: 266ms
  • Download: 0ms
βœ… Time to First Byte (TTFB)
TTFB: 266ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 1.8KB (Target: < 150KB).
βœ… Text Compression
Compression enabled (gzip).
βœ… Cache Policies
Cache-Control headers set.
βœ… CDN Usage
Edge delivery detected.
βœ… Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
❌ Native Lazy Loading
No lazy loading detected.
❌ Minified Assets
No minified assets linked.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
βœ… Character Set
UTF-8 declared.
πŸ›‘οΈ Security & Blacklist
Clean
βœ… Domain is clean.
βœ… Spamhaus DBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… SURBLVerify β†—
Not listed β€” no threats detected.
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.
πŸ“‹ WHOIS
Registrar
MarkMonitor Inc.
Registered
2018-06-27
Expires
2026-06-27
Last Updated
2025-10-10
Status
client delete prohibited, client transfer prohibited, client update prohibited
Name Servers
ns1.googledomains.com, ns2.googledomains.com, ns3.googledomains.com, ns4.googledomains.com
πŸ”— DNS Records
TypeValue
A199.36.158.100
TXTfirebase=v8-dev
TXTgoogle-site-verification=rfn_RUjt9e0U4GBrk1Yy4afY1MoPTfmaQ72-qF_50ug
NSns2.googledomains.com
NSns1.googledomains.com
NSns4.googledomains.com
NSns3.googledomains.com

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