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u.tools

https://u.tools· First analyzed 20 May 2026· Updated 20 May 2026
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u.tools
Desktop screenshot of u.tools
Mobile screenshot of u.tools
Mobile

Sponsored

Hosting Provider

Alibaba Cloud
alibabacloud.com

IP Address

47.79.64.200

Site Location

🇭🇰 Hong Kongvia ip

Server Location

🇭🇰 Hong Kong, Hong Kong

ASN

AS45102

Organization

Alibaba.com LLC

Server

ESA

CDN

Cloudflare

WAF

Cloudflare

Nameservers

nola.ns.cloudflare.com.will.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
476 ms10%
Speed Index
619 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.3 MB
51 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Next.js
Infrastructure
Hosting
Alibaba Cloud
CDN
Cloudflare

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Material UI

Meta Frameworks

1
Next.js

SEO Analysis

D50/100
15
11
1
Meta Tags5/15
Content3/12
Headings6/8
Technical15/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
U
u.toolsu.tools

uTools - 人与 AI Agent 共用的工具平台

人与 AI Agent 共用的工具平台；让人更高效，让 Agent 更全能

Title Length28 chars

Recommended: 50-60 chars (~169px / 580px)

Description Length37 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (27/34) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3,346 URLs

robots.txt

3 rules

Sitemap reference found

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

F29/100
Bot Access
20/25
Machine Read.
5/25
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
navheader/footer
Text ratio:3%
Words:110
Token eff.:Too Short
Depth:2/5

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 (10)
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.
A
85/100
13
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
27/100
E
289 mg
CO₂e / view
2.3 MB
Page Weight
50%
Cleaner Than
New Visitor
330 mg
vs
Returning (cached)
165 mg
Annual (10K/mo)
34.6 kg
Emission Segments
Data Center
64 mg
Network
69 mg
Device
155 mg
Resource Breakdown
JavaScript
579.7 KB
Images
1.6 MB
CSS
139.2 KB
HTML
6.1 KB
Other
1.2 KB
Green Hosting Not Verified
Alibaba Cloud
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

54d

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/1.1

Valid From

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (1)

www.u-tools.cn

SHA-256 Fingerprint

A2:1A:12:44:0F:4A:72:4E:B1:B9:FC:C4:44:3A:4A:73:EE:56:D5:48...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-md5
rbkqQDy3R6RgmydLHUIT3Q==
content-type
text/html
date
Wed, 20 May 2026 09:16:18 GMT
eagleid
a3b5329617792685781265641e
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxbiz1.qq.com
mxbiz2.qq.com

Domain Information

u.tools

Domain Age
8y 4m

Created

19.01.2018

Expires

19.01.2027

Last Updated

30.09.2025

Registrar

Cloudflare, Inc

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
64/100
Mobile Friendly26 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.
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
78/100
Readability
/30
23/30

26px · LH --

Hierarchy
/20
14/20

1.77x ratio · ✓ H1→H6

WCAG
/25
19/25

3.65:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

-apple-system

Sans46px

Body Font

-apple-system

Sans26px

Contrast Ratio

3.65:1

1 issue

Reading Comfort

Single Font Family

left aligned
46px
h1
26px
p

✅ Excellent readability: 26px body text is ideal for all devices.

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.6:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 22

Color Palette

3 unique colors
3.58:1 AA Large Light
#ffffff
Background· 92.1%
#888789
Other· 3.4%
#f1f0f6
Primary· 4.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

16 Resources

13
Scripts
3
Styles
0
Async
11
Defer

Top Script Sources

u-tools.cn(11)hm.baidu.com(2)

Website Identity

u.tools

8 years old
Location detected: 🇭🇰 Hong Kongvia ip
Cloudflare, Inczh-cmn-Hans

Sponsored

Last analyzed: 20 May 2026 at 09:16

Historical Analysis & Change Tracking