StackOptic
Back to Search
clouddn.com favicon

clouddn.com

https://clouddn.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026
Export
clouddn.com
Desktop screenshot of clouddn.com
Mobile screenshot of clouddn.com
Mobile

Sponsored

Hosting Provider

China Mobile

IP Address

117.148.167.206

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Hangzhou, China

ASN

AS56041

Organization

China Mobile

Server

OpenResty

Performance

100

Core Web Vitals

Weight

First Contentful Paint
292 ms10%
Speed Index
380 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
126 KB
1 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
China Mobile

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
OpenResty

SEO Analysis

F39/100
9
11
2
Meta Tags4/15
Content3/12
Headings8/8
Technical10/21
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
C
clouddn.comclouddn.com

Welcome to OpenResty!

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~134px / 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 (5/8) — critical for accessibility and SEO

13 issues found

Upgrade to view details

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

F31/100
Bot Access
20/25
Machine Read.
6/25
Schema Data
0/25
Citation
5/25

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:1%
Words:137
Token eff.:Too Short
Sections/1K:29.2

Structured Data

No Schema

Citation Readiness

Opening Summary18w
Descriptive Headingsavg 3.5w
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...
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.
D
59/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •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.
54/100
A+
16 mg
CO₂e / view
125.9 KB
Page Weight
95%
Cleaner Than
New Visitor
18 mg
vs
Returning (cached)
9 mg
Annual (10K/mo)
1.9 kg
Emission Segments
Data Center
4 mg
Network
4 mg
Device
8 mg
Resource Breakdown
HTML
125.9 KB
Green Hosting Not Verified
China Mobile
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-length
128646
content-type
text/html
date
Thu, 30 Apr 2026 21:06:45 GMT
etag
"69f1bb2f-1f686"
last-modified
Wed, 29 Apr 2026 08:02:55 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

clouddn.com

Domain Age
12 years

Created

14.04.2014

Expires

14.04.2027

Last Updated

10.01.2026

Registrar

Amazon Registrar, 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.
D
56/100
Mobile Friendly4 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, maximum-scale=1, user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lato

WCAG Partial
73/100
Readability
/30
21/30

18px · LH 1.50

Hierarchy
/20
19/20

2.31x ratio · ✓ H1→H6

WCAG
/25
17/25

2.56:1 min contrast

Performance
/25
16/25

1 font

Heading Font

Lato

Sans42px

Body Font

Lato

Sans18px

Contrast Ratio

2.56:1

14 issues

Reading Comfort

~38 CPL

Narrow lines
42px
h1
25px
h2
16px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 30/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 2.6:1).

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

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

Buy on MyFontsFlesch 30

Color Palette

5 unique colors
11.73:1 AAA Light
#ffffff
Background· 17%
#353936
Other· 5.4%
#53ac42
Primary· 52.00000000000001%
#d5eac9
Secondary· 20.3%
#b7d5a8
Secondary· 5.3%

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

Sponsored

Website Identity

clouddn.com

12 years old
Location detected: 🇨🇳 Chinavia ip
Amazon Registrar, Inc.en

Social Profiles

YouTube

Sponsored

Last analyzed: 30 Apr 2026 at 21:07

Historical Analysis & Change Tracking