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yjzj.com

https://yjzj.com· First analyzed 10 May 2026· Updated 10 May 2026
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yjzj.com
Desktop screenshot of yjzj.com
Mobile screenshot of yjzj.com
Mobile

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Hosting Provider

alibabacloud.com

IP Address

8.148.21.196

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Hangzhou, China

ASN

AS37963

Organization

Alibaba.com LLC

Server

Nginx

CDN

CDN

Nameservers

dns19.hichina.com.dns20.hichina.com.

Performance

84

Core Web Vitals

Weight

First Contentful Paint
1.8 s10%
Speed Index
2.4 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.5 MB
120 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
Alibaba Cloud
CDN
CDN

Technology Stack

7 Technologies Detected

SEO Analysis

F39/100
13
10
2
Meta Tags5/15
Content2/12
Headings1/8
Technical11/21
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
Y
yjzj.comyjzj.com

一剑装机

一剑装机 无拘创意 定制你的专属化装机体验

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length21 chars

Recommended: 120-160 chars

Issues (2)

  • Very thin content (1 words). Search engines need substantial content for ranking.
  • Missing H1 tag — every page should have exactly one H1

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F29/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
2/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:1%
Words:476
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
C
64/100
9
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • Accessibility recommendation preview...

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
28/100
F
444 mg
CO₂e / view
3.5 MB
Page Weight
15%
Cleaner Than
New Visitor
507 mg
vs
Returning (cached)
254 mg
Annual (10K/mo)
53.2 kg
Emission Segments
Data Center
99 mg
Network
107 mg
Device
238 mg
Resource Breakdown
JavaScript
522.0 KB
Images
116.5 KB
CSS
2.9 MB
HTML
16.0 KB
Other
9.8 KB
Green Hosting Not Verified
Alibaba Cloud
5 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

38d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.03.2026

Valid Until

18.06.2026

Subject Alternative Names (2)

www.yjzj.comyjzj.com

SHA-256 Fingerprint

4E:42:77:C4:39:DC:FC:CD:EF:35:A1:DB:AF:57:07:96:CE:FC:E7:6B...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cache-control
Custom(s-maxage=31536000, stale-while-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Sun, 10 May 2026 17:31:44 GMT
etag
"4b4v5wdxqf4mp1"
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (2)

mxbiz2.qq.com
mxbiz1.qq.com

Domain Information

yjzj.com

Domain Age
22y 10m

Created

18.07.2003

Expires

18.07.2026

Last Updated

18.06.2025

Registrar

Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
C
66/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

PingFang SC

WCAG Partial
56/100
Readability
/30
19/30

16px · LH --

Hierarchy
/20
8/20
WCAG
/25
16/25

1:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

PingFang SC

Sans

Body Font

PingFang SC

Sans16px

Contrast Ratio

1:1

19 issues

Reading Comfort

~158 CPL

Too wide
16px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very long lines: ~158 chars/line causes eye strain. Add max-width constraint.

✅ Easy to read: Flesch score 97/100 — accessible to general audiences.

⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Color Palette

10 unique colors
Dark
#272727
Other· 32.50000000000001%
#1f1867
Primary· 18.799999999999997%
#491797
Accent· 10.4%
#7362bd
Secondary· 7.7%
#e4cfe9
Secondary· 7%
#4e5670
Secondary· 6.6%
#7517b9
Accent· 5.9%
#7897cf
Secondary· 5.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

14 Resources

10
Scripts
4
Styles
6
Async
0
Defer

Top Script Sources

local(7)hm.baidu.com(1)googletagmanager.com(1)yjzj.soboten.com(1)

Website Identity

yjzj.com

22 years old
Location detected: 🇨🇳 Chinavia ip
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)zh-CN

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Last analyzed: 10 May 2026 at 17:32

Historical Analysis & Change Tracking