50
/ 100
D
Below Avg
Overall Domain Score
SEO 69 · LLM 18 · Perf 55
69
🔍 SEO Score
9 / 13 checks passed
18
🤖 LLM Readiness
2 / 11 checks passed
55
⚡ Performance
6 / 11 checks passed
📝 Extracted Page Tags
Title Tag
teratail【テラテイル】｜ITエンジニア特化型Q&Aサイト
Meta Description
teratail（テラテイル）はプログラミングに特化したQ&Aサイトです。実現したい機能や作業中に発生したエラーについて質問すると、他のエンジニアから回答を得られます。
H1 Heading
None found
Canonical URL
https://teratail.com/
🔍 SEO Audit
69/100✅ Title Tag
Length: 32 chars (Ideal: 30-60).
✅ Meta Description
Length: 84 chars (Ideal: 50-160).
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
✅ Canonical URL
Canonical URL is set.
✅ Open Graph Tags
Found 7 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
2 of 16 images missing alt.
✅ Sitemap
Sitemap declared.
❌ Heading Hierarchy
Missing H1 or H2 tags.
✅ Internal Links
Found 57 internal links.
❌ HSTS Security
Missing HSTS header.
✅ HTTPS
Loads securely over HTTPS.
🤖 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.
✅ AI Crawler Access
AI agents not blocked.
❌ Language Declaration
Missing <html> lang attribute.
✅ Semantic Structure
Uses <main> or <article>.
❌ Entity Verification Links
No entity validation links.
⚡ Performance
55/100Network Waterfall (Total: 2199ms)
- DNS: 124ms
- Connect: 367ms
- TTFB: 1957ms
- Download: 242ms
❌ Time to First Byte (TTFB)
TTFB: 1957ms (Target: < 600ms).
✅ HTML Payload Size
Raw HTML: 12.9KB (Target: < 150KB).
✅ Text Compression
Compression enabled (gzip).
✅ Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
✅ 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
Resource hints found.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean✅ Domain is clean.
⚙️ Technologies
Analytics & Tracking
Google AnalyticsGoogle Tag Manager
Advertising
DoubleClick
JavaScript
Next.js
📋 WHOIS
Registrar
Japan Registry Services Co., Ltd.
Registered
2013-10-09T01:13:12Z
Expires
2026-10-09T01:13:12Z
Last Updated
2025-08-26T17:44:09Z
Status
ok https://icann.org/epp#ok
Name Servers
NS-1043.AWSDNS-02.ORG, NS-1877.AWSDNS-42.CO.UK, NS-7.AWSDNS-00.COM, NS-872.AWSDNS-45.NET
🔗 DNS Records
| Type | Value |
|---|---|
| A | 52.198.93.165 |
| A | 52.198.248.85 |
| A | 52.193.204.235 |
| MX | aspmx.l.google.com |
| MX | alt3.aspmx.l.google.com |
| MX | alt4.aspmx.l.google.com |
| MX | alt1.aspmx.l.google.com |
| MX | alt2.aspmx.l.google.com |
| TXT | google-site-verification=nK3X1Y3yJN5Esj_bh4Jz-dE7sIU53orkzXLaPDaUr7Q |
| TXT | google-site-verification=AmSo_GrO03xJgOb3j93G44EfBiKKBbaWmagZiLG9kBE |
| NS | ns-872.awsdns-45.net |
| NS | ns-1043.awsdns-02.org |
| NS | ns-1877.awsdns-42.co.uk |
| NS | ns-7.awsdns-00.com |