5usujian.com

https://5usujian.com· First analyzed 12 May 2026· Updated 12 May 2026

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5usujian.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

8.130.46.72

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS37963

Organization

Alibaba.com LLC

Server

Nginx

Nameservers

dns10.hichina.com.dns9.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

4.0 s10%

Speed Index

5.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

19 KB

28 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

5 Technologies Detected

Libraries

Other

CSS Frameworks

Web Servers

SEO Analysis

D50/100

Meta Tags8/15

Content9/12

Headings3/8

Technical12/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

5usujian.com5usujian.com

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Description truncated.

Title Length14 chars

Recommended: 50-60 chars (~86px / 580px)

Description Length184 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

146 URLs

robots.txt

18 rules

Local SEO

Local Search Readiness

5/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

6/25

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:8%

Words:419

Token eff.:Optimal

Sections/1K:45.3

Structured Data

No Schema

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 1w

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.

44/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

4/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

0/15

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

9/15

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.

5 recommendations

•Accessibility recommendation preview...

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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.

60/100

A+

2 mg

CO₂e / view

18.9 KB

Page Weight

95%

Cleaner Than

New Visitor

3 mg

Returning (cached)

1 mg

Annual (10K/mo)

276 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

JavaScript

2.8 KB

CSS

1.4 KB

HTML

14.4 KB

Other

320 B

Green Hosting Not Verified

Alibaba Cloud

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.04.2026

Valid Until

25.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

*.wysujian.com*.5usujian.com*.5usj.cnwysujian.com5usujian.com5usj.cnfxingai.com*.fxingai.com

SHA-256 Fingerprint

49:D0:15:D3:97:DB:DF:AE:42:ED:6B:03:20:07:46:6B:EB:0B:A5:33...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Tue, 12 May 2026 15:48:43 GMT

etag

W/"691c6c42-ed4c"

last-modified

Tue, 18 Nov 2025 12:53:22 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

5usujian.com

Domain Age

10y 6m

Created

24.10.2015

Expires

24.10.2026

Last Updated

09.10.2025

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

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.

47/100

Not 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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Microsoft YaHei

WCAG Partial

47/100

Readability

/30

11/30

12px · LH --

Hierarchy

/20

8/20

WCAG

/25

14/25

1.12:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Microsoft YaHei

Sans

Body Font

Microsoft YaHei

Sans12px

Contrast Ratio

1.12:1

6 issues

Reading Comfort

~57 CPL

Optimal (45–75)

24px

16px

14px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.1:1).

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

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

Buy on MyFontsFlesch 0

Color Palette

6 unique colors

Light

#ffffff

Background· 18.6%

#fff0dd

Primary· 32.7%

#def6ff

Background· 29.1%

#889fa7

Secondary· 8.3%

#343545

Text· 6.6%

#b1d8dd

Secondary· 4.6%

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Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.5usj.cn(8)zz.bdstatic.com(1)hm.baidu.com(1)local(1)s95.cnzz.com(1)

Website Identity

5usujian.com

wuyousujian@sina.com

10 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.

Sponsored

Last analyzed: 12 May 2026 at 15:49

Historical Analysis & Change Tracking