sj33.cn

https://sj33.cn· First analyzed 07 May 2026· Updated 07 May 2026

Export

sj33.cn

Mobile

Sponsored

Hosting Provider

Chinanet AH

IP Address

61.191.55.49

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Hefei, China

ASN

AS4134

Organization

Chinanet AH

Server

Nginx

Nameservers

augus.dnspod.net.singer.dnspod.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

837 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.7 MB

86 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

B2 PROv5.9.42Custom

by Li Ruchun

View Theme

Technology Stack

6 Technologies Detected

Frameworks

Libraries

CSS Frameworks

Web Servers

Security

Plugins

SEO Analysis

D59/100

Meta Tags9/15

Content8/12

Headings3/8

Technical15/25

E-E-A-T0/7

Images3/7

Links4/5

URL5/5

Social3/5

Freshness2/4

Mobile4/4

Indexability3/3

sj33.cnsj33.cn

设计之家 – 传播先进设计理念推动原创设计发展

设计之家成立于2006年，是自发组织的视觉设计、联盟的网络媒体，以传播先进设计理念，推动原创设计发展为己任，是一个为设计行业提供高质量的网络交流平台和网络资源共享平台的组织机构，义务服务于中国设计领域的网站。内容涵盖平面设计、工业设计、网页设计、CG、设计教程、环艺设计、艺术、素材等

Title Length24 chars

Recommended: 50-60 chars (~148px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

42 URLs

42 sub-sitemaps

robots.txt

14 rules

Sitemap reference found

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.

Sponsored

AI & LLM Readiness

F36/100

Bot Access

18/25

Machine Read.

10/25

Schema Data

0/25

Citation

8/25

AI Bot Access

12/14 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:2%

Words:470

Token eff.:Optimal

Sections/1K:78.7

Structured Data

No Schema

Citation Readiness

Opening Summary166w

Descriptive Headingsavg 1.7w

Canonical URL

Open Graph2/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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Sponsored

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.

54/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

16/20

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

Forms & Inputs

5/15

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

6/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

2/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

32/100

214 mg

CO₂e / view

1.7 MB

Page Weight

60%

Cleaner Than

New Visitor

244 mg

Returning (cached)

122 mg

Annual (10K/mo)

25.7 kg

Emission Segments

Data Center

48 mg

Network

51 mg

Device

115 mg

Resource Breakdown

JavaScript

134.4 KB

Images

1.4 MB

CSS

149.2 KB

HTML

37.0 KB

Other

953 B

Green Hosting Not Verified

Chinanet AH

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

65d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Unizeto Technologies S.A.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.06.2025

Valid Until

11.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.sj33.cnsj33.cn

SHA-256 Fingerprint

E7:03:3B:21:9E:DE:FC:27:21:40:F2:FB:BE:23:89:9F:BC:3E:3C:B2...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

quic=":443"; h3=":443"; h3-29=":443"; h3-27=":443";h3-25=":4...

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 07 May 2026 00:40:13 GMT

link

<https://www.sj33.cn/wp-json/>; rel="https://api.w.org/"

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.ym.163.com

Domain Information

sj33.cn

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.

68/100

Mobile Friendly4 breakpoints

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=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

62/100

Readability

/30

16/30

14px · LH 1.40

Hierarchy

/20

11/20

0.93x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

-apple-system

Sans13px

Body Font

-apple-system

Sans14px

Contrast Ratio

1:1

8 issues

Reading Comfort

Single Font Family

left aligned

13px

28px

16px

14px

Perfect Fourth

Scale

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 14/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Flesch 14

Color Palette

16 unique colors

Light

#ffffff

Text· 9.3%

#fa9fb4

Accent· 11.2%

#f96e9c

Accent· 8.5%

#111221

Secondary· 7.9%

#fa89ad

Accent· 7.4%

#cb0002

Primary· 7.3%

#3b5bad

Secondary· 6.9%

#2a1a4b

Secondary· 6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sj33.cn(15)1.sj33.net(2)hm.baidu.com(1)cpro.baidustatic.com(1)cdn.wwads.cn(1)

Website Identity

sj33.cn

Location detected: 🇨🇳 Chinavia tld

zh-Hans

Sponsored

Last analyzed: 07 May 2026 at 00:40

Historical Analysis & Change Tracking

sj33.cn

设计之家 – 传播先进设计理念 推动原创设计发展

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

sj33.cn

设计之家 – 传播先进设计理念推动原创设计发展