ck100.com

https://ck100.com· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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ck100.com

Mobile

Sponsored

Hosting Provider

21ViaNet

IP Address

59.151.113.65

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Chaowai, China

ASN

AS56048

Organization

21ViaNet

Server

Nginx

Nameservers

ns2.cdeledu.com.ns1.cdeledu.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

781 KB

69 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

21ViaNet

Technology Stack

5 Technologies Detected

Frameworks

Libraries

CSS Frameworks

Analytics

Web Servers

SEO Analysis

D41/100

Meta Tags5/15

Content9/12

Headings3/8

Technical8/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

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Title Length14 chars

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

Description Length34 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

17 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

13 URLs

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F32/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

4/25

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:11%

Words:427

Token eff.:Optimal

Sections/1K:4.7

Structured Data

No Schema

Citation Readiness

Opening Summary

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...

Upgrade to view recommendations

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.

42/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

4/20

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

Forms & Inputs

7/15

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

5/15

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.

28/100

97 mg

CO₂e / view

780.6 KB

Page Weight

80%

Cleaner Than

New Visitor

110 mg

Returning (cached)

55 mg

Annual (10K/mo)

11.6 kg

Emission Segments

Data Center

22 mg

Network

23 mg

Device

52 mg

Resource Breakdown

JavaScript

212.8 KB

Images

461.6 KB

CSS

67.7 KB

HTML

38.5 KB

Green Hosting Not Verified

21ViaNet

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Interactive

No SSL

No WAF

nulld

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

content-type

text/html; charset=gbk

date

Mon, 01 Jun 2026 18:23:34 GMT

server

nginx

transfer-encoding

chunked

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.ck100.com

Domain Information

ck100.com

Domain Age

24y 11m

Created

19.06.2001

Expires

19.06.2027

Last Updated

05.02.2026

Registrar

Xin Net Technology Corporation

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

35/100

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.

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

宋体

WCAG Partial

47/100

Readability

/30

10/30

12px · LH 2.00

Hierarchy

/20

9/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

宋体

Sans

Body Font

宋体

Sans12px

Contrast Ratio

1:1

11 issues

Reading Comfort

Single Font Family

left aligned

14px

12px

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

7 unique colors

Light

#ffffff

Background· 73.00000000000001%

#c35f2e

Primary· 7.3%

#b1c4cb

Secondary· 6.7%

#e4e1db

Border· 5.3%

#e8c59d

Accent· 2.3%

#b19673

Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)ck100.com(4)member.ck100.com(2)hm.baidu.com(2)

Website Identity

ck100.com

24 years old

Location detected: 🇨🇳 Chinavia ip

Xin Net Technology Corporation

Sponsored

Last analyzed: 01 Jun 2026 at 18:24

Historical Analysis & Change Tracking