wrenchina.com

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

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wrenchina.com

Mobile

Sponsored

Hosting Provider

Shanghai UCloud Information Technology Company Limited

IP Address

117.50.68.64

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS23724

Organization

Shanghai UCloud Information Technology Company Limited

Server

Nginx

Nameservers

ns17.xincache.com.ns18.xincache.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

862 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2 MB

79 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Shanghai UCloud Information Technology Company Limited

Technology Stack

6 Technologies Detected

Libraries

Other

UI Components

CSS Frameworks

Web Servers

SEO Analysis

D55/100

Meta Tags7/15

Content10/12

Headings0/8

Technical13/25

E-E-A-T3/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

wrenchina.comwrenchina.com

雷恩液压

雷恩公司成立于1992年，是超高压液压工具（70-350Mpa）领域最专业的制造商之一。雷恩致力于开发高品质的工业紧固系统，使工业紧固作业更安全、更简便。

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length77 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

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Crawlability

Sitemap

robots.txt

10 rules

Local SEO

Local Search Readiness

5/100

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

F38/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

8/25

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. lists

Text ratio:2%

Words:576

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 (8)

AI readiness recommendation preview...

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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

10/20

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

9/15

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.

29/100

256 mg

CO₂e / view

2.0 MB

Page Weight

50%

Cleaner Than

New Visitor

292 mg

Returning (cached)

146 mg

Annual (10K/mo)

30.7 kg

Emission Segments

Data Center

57 mg

Network

61 mg

Device

137 mg

Resource Breakdown

JavaScript

253.8 KB

Images

1.4 MB

CSS

371.6 KB

HTML

14.2 KB

Green Hosting Not Verified

Shanghai UCloud Information Technology Company Limited

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

15.05.2026

Valid Until

13.08.2026

Subject Alternative Names (2)

wrenchina.comwww.wrenchina.com

SHA-256 Fingerprint

E9:25:65:E9:8B:08:6C:06:BF:AE:B8:75:1A:80:9B:41:39:93:A1:5F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

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

cache-control

🔴 No Cache(no-cache, private)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sat, 16 May 2026 19:39:04 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

hzmx02.mxmail.netease.com

hzmx01.mxmail.netease.com

Domain Information

wrenchina.com

Domain Age

25y 2m

Created

06.03.2001

Expires

06.03.2030

Last Updated

24.02.2025

Registrar

Xin Net Technology Corporation

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.

40/100

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

微软雅黑

WCAG AA

55/100

Readability

/30

15/30

14px · LH 1.00

Hierarchy

/20

9/20

WCAG

/25

18/25

4.84:1 min contrast

Performance

/25

13/25

1 font · 1 req

Heading Font

微软雅黑

Body Font

微软雅黑

Sans14px

Contrast Ratio

4.84:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned

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

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

✅ Easy to read: Flesch score 85/100 — accessible to general audiences.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Buy on MyFontsFlesch 85

Color Palette

8 unique colors

9.64:1 AAA Dark

#000000

Background· 98.4%

#b2afaf

Other· 0.3%

#e10313

Primary· 0.3%

#633639

Secondary· 0.2%

#590007

Accent· 0.1%

#1c0607

Accent· 0.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)s9.cnzz.com(1)

Website Identity

wrenchina.com

info@wrenchina.com

25 years old

Location detected: 🇨🇳 Chinavia ip

Xin Net Technology Corporationen

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Last analyzed: 16 May 2026 at 19:40

Historical Analysis & Change Tracking