588ku.com

https://588ku.com· First analyzed 27 Apr 2026· Updated 27 Apr 2026

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588ku.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

101.132.157.48

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shanghai, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Nginx

Nameservers

ns3.dnsv2.com.ns4.dnsv2.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.5 s10%

Speed Index

3.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.1 MB

137 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Progressive Web App

Web Manifest

Technology Stack

8 Technologies Detected

Analytics

Libraries

CSS Frameworks

Web Servers

Customer Support

SEO Analysis

D54/100

Meta Tags9/15

Content10/12

Headings1/8

Technical15/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

588ku.com588ku.com

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Title Length28 chars

Recommended: 50-60 chars (~171px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (113/146) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

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Crawlability

Sitemap

Type: index

37 URLs

37 sub-sitemaps

robots.txt

208 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

F22/100

Bot Access

5/25

Machine Read.

8/25

Schema Data

0/25

Citation

9/25

AI Bot Access

2/14 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

def. lists

Text ratio:4%

Words:1,392

Token eff.:Optimal

Depth:1/5

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 (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.

37/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

9/20

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

Forms & Inputs

2/15

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.

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.

40/100

140 mg

CO₂e / view

1.1 MB

Page Weight

70%

Cleaner Than

New Visitor

160 mg

Returning (cached)

80 mg

Annual (10K/mo)

16.8 kg

Emission Segments

Data Center

31 mg

Network

34 mg

Device

75 mg

Resource Breakdown

JavaScript

770.3 KB

Images

18.1 KB

CSS

282.3 KB

HTML

55.3 KB

Other

2.5 KB

Green Hosting Not Verified

Alibaba Cloud

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

139d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

14.08.2025

Valid Until

13.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.588ku.com588ku.com

SHA-256 Fingerprint

47:FD:87:24:28:BD:55:0B:5E:A3:B5:EA:87:F8:8E:54:E8:56:1B:24...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf8

date

Mon, 27 Apr 2026 17:49:41 GMT

server

nginx

set-cookie

acw_tc

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxbiz2.qq.com

mxbiz1.qq.com

Domain Information

588ku.com

Domain Age

10y 7m

Created

09.09.2015

Expires

09.09.2028

Last Updated

19.03.2026

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

36/100

Not Mobile Friendly2 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

PingFangSC-Regular

WCAG Partial

53/100

Readability

/30

14/30

12px · LH 1.33

Hierarchy

/20

7/20

WCAG

/25

18/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

PingFangSC-Regular

Body Font

PingFangSC-Regular

Sans12px

Contrast Ratio

1:1

2 issues

Reading Comfort

~68 CPL

Optimal (45–75)

12px

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

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~68 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 2 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.

Buy on MyFonts

Color Palette

12 unique colors

Light

#a19f9e

Other· 33.5%

#89271f

Primary· 8.9%

#fcf4d9

Accent· 8.2%

#aa938b

Secondary· 7.5%

#b34733

Accent· 6.6%

#9f7768

Secondary· 6.2%

#614c57

Text· 6.2%

#84939e

Secondary· 4.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js-oss.588ku.com(10)g.alicdn.com(3)hm.baidu.com(2)o.alicdn.com(2)hmcdn.baidu.com(1)

Website Identity

588ku.com

10 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.zh-cn

Sponsored

Last analyzed: 27 Apr 2026 at 17:50

Historical Analysis & Change Tracking