chinahaineng.com

https://chinahaineng.com· First analyzed 16 May 2026· Updated 16 May 2026

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chinahaineng.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

139.129.181.218

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Qingdao, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Nginx

Nameservers

ns2.4everdns.com.ns1.4everdns.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.3 s10%

Speed Index

3.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.5 MB

39 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

5 Technologies Detected

Libraries

UI Components

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

D52/100

Meta Tags4/15

Content8/12

Headings7/8

Technical15/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

chinahaineng.comchinahaineng.com

海能

No description available for this page.

Title Length2 chars

Recommended: 50-60 chars (~12px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (64/64) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

19 URLs

robots.txt

1 rules

Allows all crawlers

Local SEO

Local Search Readiness

6/100

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

F31/100

Bot Access

20/25

Machine Read.

5/25

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

def. listsnav

Text ratio:3%

Words:146

Token eff.:Too Short

Sections/1K:27.4

Depth:2/5

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 (10)

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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

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

Forms & Inputs

10/15

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

8/15

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

3 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.

12/100

699 mg

CO₂e / view

5.5 MB

Page Weight

Cleaner Than

New Visitor

798 mg

Returning (cached)

399 mg

Annual (10K/mo)

83.8 kg

Emission Segments

Data Center

156 mg

Network

168 mg

Device

375 mg

Resource Breakdown

JavaScript

391.1 KB

Images

252.5 KB

CSS

4.9 MB

HTML

31.1 KB

Green Hosting Not Verified

Alibaba Cloud

7 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

cache-control

🟣 Private(private)

connection

content-type

text/html; charset=utf-8

date

Sat, 16 May 2026 14:38:42 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx98x.chinaemail.cn

mxa98x.chinaemail.cn

Domain Information

chinahaineng.com

Domain Age

20y 6m

Created

19.11.2005

Expires

19.11.2028

Last Updated

22.11.2024

Registrar

Bizcn.com, Inc.

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=1.0,user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

DIN

WCAG Partial

57/100

Readability

/30

19/30

20px · LH 1.75

Hierarchy

/20

14/20

2.5x ratio

WCAG

/25

13/25

1:1 min contrast

Performance

/25

11/25

3 fonts · 1 req

Heading Font

DIN

Sans50px

Body Font

DIN

Sans20px

Contrast Ratio

1:1

32 issues

Reading Comfort

~39 CPL

Narrow lines

50px

24px

100px

20px

Major Sixth

Scale

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Partial contrast: 32 elements below WCAG AA threshold (min 1.0:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

Buy on MyFonts

Color Palette

15 unique colors

Light

#839283

Other· 0.9%

#6d6b40

Primary· 14.6%

#525334

Secondary· 9.2%

#7cb8df

Accent· 8.5%

#87704c

Secondary· 8.4%

#ce9f6e

Secondary· 7.1%

#b0875f

Secondary· 7%

#32402c

Secondary· 7%

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Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)

Website Identity

chinahaineng.com

20 years old

Location detected: 🇨🇳 Chinavia ip

Bizcn.com, Inc.en

Sponsored

Last analyzed: 16 May 2026 at 14:39

Historical Analysis & Change Tracking