chem17.com
Scanned URL: https://chem17.com
54
🔍 SEO Score
7 / 13 checks passed
18
🤖 LLM Readiness
2 / 11 checks passed
45
⚡ Performance
5 / 11 checks passed
📝 Extracted Page Tags
Title Tag
化工仪器网-专业科学仪器-分析检测仪器及实验室仪器设备服务平台
Meta Description
化工仪器网是专业的仪器设备行业B2B门户网站，为用户提供分析仪器、实验室仪器设备、环境监测仪器等仪器相关产品，并实时更新仪器展会、仪器新闻会议、仪器优质供应商、仪器供求商机等市场行情信息，获取更多仪器相关信息就访问化工仪器网。
H1 Heading
None found
Canonical URL
None found
🔍 SEO Audit
54/100✅ Title Tag
Length: 31 chars (Ideal: 30-60).
✅ Meta Description
Length: 113 chars (Ideal: 50-160).
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
❌ Canonical URL
Missing canonical tag.
❌ Open Graph Tags
Found 0 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
191 of 388 images missing alt.
✅ Sitemap
Sitemap declared.
❌ Heading Hierarchy
Missing H1 or H2 tags.
✅ Internal Links
Found 2903 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 provides good 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
No semantic HTML5 wrappers.
❌ Entity Verification Links
No entity validation links.
⚡ Performance
45/100Network Waterfall (Total: 7016ms)
- DNS: 1511ms
- Connect: 1772ms
- TTFB: 3216ms
- Download: 3800ms
❌ Time to First Byte (TTFB)
TTFB: 3216ms (Target: < 600ms).
✅ HTML Payload Size
Raw HTML: 85.1KB (Target: < 150KB).
✅ Text Compression
Compression enabled (gzip).
❌ Cache Policies
Missing Cache-Control headers.
❌ 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
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean✅ Domain is clean.
⚙️ Technologies
JavaScript
jQuery
📋 WHOIS
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
2003-03-17T08:48:55Z
Expires
2033-03-17T07:48:55Z
Last Updated
2025-05-06T08:46:50Z
Status
ok https://icann.org/epp#ok
Name Servers
VIP3.ALIDNS.COM, VIP4.ALIDNS.COM
🔗 DNS Records
| Type | Value |
|---|---|
| A | 101.71.9.131 |
| MX | mailmx2.dns.com.cn |
| NS | vip3.alidns.com |
| NS | vip4.alidns.com |