physics.info

Scanned URL: https://physics.info

📅 Scan completed: April 18, 2026 at 2:44 PM

78
/ 100
B
Good
Overall Domain Score
SEO 85 · LLM 73 · Perf 73
85

πŸ” SEO Score

11 / 13 checks passed

73

πŸ€– LLM Readiness

8 / 11 checks passed

73

⚑ Performance

8 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
The Physics Hypertextbook
Meta Description
The Physics Hypertextbook is a reaction to three big problems with textbooks: lack of writer's voice, layouts that reduce readability, and outdated economics.
H1 Heading
Welcome
Canonical URL
https://physics.info
πŸ” SEO Audit
85/100
❌ Title Tag
Length: 25 chars (Ideal: 30-60).
βœ… Meta Description
Length: 158 chars (Ideal: 50-160).
❌ H1 Tag
Found 2 H1 tags. Exactly 1 is recommended.
βœ… Canonical URL
Canonical URL is set.
βœ… Open Graph Tags
Found 6 OG properties (4+ recommended).
βœ… Indexability
Page allows indexing.
βœ… Mobile Viewport
Viewport meta tag present.
βœ… Image Alt Text
0 of 3 images missing alt.
βœ… Sitemap
Sitemap declared.
βœ… Heading Hierarchy
H1 and H2 structure detected.
βœ… Internal Links
Found 190 internal links.
βœ… HSTS Security
HSTS header present.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
73/100
βœ… Structured Data (JSON-LD)
Found 3 JSON-LD blocks.
βœ… Schema Entities
Types: organization, website, person
❌ FAQ Schema
Missing FAQ schema.
βœ… Contextual Summary
Description provides good AI context.
βœ… E-E-A-T (Author)
Author identity found.
βœ… Organisation Schema
Business entity defined.
❌ 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>.
❌ Entity Verification Links
No entity validation links.
⚑ Performance
73/100
Network Waterfall (Total: 240ms)
  • DNS: 124ms
  • Connect: 132ms
  • TTFB: 228ms
  • Download: 12ms
βœ… Time to First Byte (TTFB)
TTFB: 228ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 9KB (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.
βœ… Minified Assets
Minified .js/.css referenced.
❌ 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.
βš™οΈ Technologies
E-Commerce
Magento
Analytics & Tracking
Google AnalyticsGoogle Tag Manager
JavaScript
jQuery
Infrastructure & CDN
Cloudflare
πŸ“‹ WHOIS
Registrar
eNom, LLC
Expires
2030-07-13
Registered
2002-07-13
Last Updated
2024-10-26
Status
client transfer prohibited
Name Servers
tina.ns.cloudflare.com, cleo.ns.cloudflare.com
πŸ”— DNS Records
TypeValue
A172.64.80.1
MXmx02.mail.icloud.com
MXmx01.mail.icloud.com
TXTgoogle-site-verification=xTiSKZe-i9qqZhS2-7YadwjS1OgWoRac3f8mVY7cnfk
TXTv=spf1 +a +mx +ip4:172.96.186.143 +ip4:173.192.232.253 +ip4:173.192.209.197 include:icloud.com ~all
TXTapple-domain=RssC9hiGRxytgmSG
NScleo.ns.cloudflare.com
NStina.ns.cloudflare.com
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