changba.com

https://changba.com· First analyzed 20 May 2026· Updated 20 May 2026

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changba.com

Mobile

Sponsored

Hosting Provider

Aliyun Computing Co., LTD

IP Address

182.92.6.110

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

lighttpd/1.12.1.patch

Nameservers

ns3.dnsv4.com.ns4.dnsv4.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.5 s10%

Speed Index

4.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.2 MB

31 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Aliyun Computing Co., LTD

Technology Stack

5 Technologies Detected

Libraries

UI Components

CSS Frameworks

Languages

SEO Analysis

D41/100

Meta Tags7/15

Content5/12

Headings0/8

Technical10/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

changba.comchangba.com

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Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length76 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

80 URLs

robots.txt

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

F24/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

3/25

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:3%

Words:61

Token eff.:Too Short

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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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.

58/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

3/20

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

9/15

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

ARIA & Roles

6/15

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.

33/100

151 mg

CO₂e / view

1.2 MB

Page Weight

70%

Cleaner Than

New Visitor

173 mg

Returning (cached)

86 mg

Annual (10K/mo)

18.1 kg

Emission Segments

Data Center

34 mg

Network

36 mg

Device

81 mg

Resource Breakdown

JavaScript

63.3 KB

Images

1.1 MB

CSS

6.6 KB

HTML

4.9 KB

Green Hosting Not Verified

Aliyun Computing Co., LTD

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

152d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

18.09.2025

Valid Until

19.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.changba.comchangba.com

SHA-256 Fingerprint

F2:5F:13:93:F4:5D:53:7C:8F:DA:1A:41:4F:61:6C:06:5B:E8:BF:21...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src * blob:;script-src 'self' 'unsafe-inline' 'unsa...

content-type

text/html; charset=utf-8

date

Wed, 20 May 2026 20:43:58 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxw.mxhichina.com

mxn.mxhichina.com

Domain Information

changba.com

Domain Age

21y 2m

Created

03.03.2005

Expires

03.03.2027

Last Updated

06.02.2026

Registrar

eName Technology 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.

42/100

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,minimum-scale=1,maximum-scale=1,user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

microsoft yahei

WCAG Partial

55/100

Readability

/30

16/30

14px · LH 1.29

Hierarchy

/20

9/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

microsoft yahei

Body Font

microsoft yahei

Sans14px

Contrast Ratio

1:1

30 issues

Reading Comfort

Single Family

left aligned

14px

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

⚠️ Tight line spacing (1.29). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 30 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

#f8f8f8

Background· 8.2%

#ff1a28

Primary· 59.5%

#ff0839

Accent· 17%

#6f3c4d

Secondary· 8.6%

#c6b5b4

Secondary· 5.5%

#c6192a

Accent· 0.9%

#ae0c26

Accent· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cb.cdn.changbaimg.com(2)res.cdn.changbaimg.com(2)hm.baidu.com(1)retcode.alicdn.com(1)

Website Identity

changba.com

21 years old

Location detected: 🇨🇳 Chinavia ip

eName Technology Co., Ltd.

Sponsored

Last analyzed: 20 May 2026 at 20:44

Historical Analysis & Change Tracking