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caas.cn

https://caas.cn· First analyzed 02 May 2026· Updated 02 May 2026
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caas.cn
Desktop screenshot of caas.cn
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Mobile

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Hosting Provider

Huawei Cloud Service

IP Address

124.70.125.111

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Beijing, China

ASN

AS55990

Organization

Huawei Cloud Service

Server

CW

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
27 MB
154 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Huawei Cloud Service

Technology Stack

3 Technologies Detected

UI Components

2
SwiperSlick Carousel

Libraries

1
jQuery

SEO Analysis

D48/100
13
9
3
Meta Tags4/15
Content11/12
Headings1/8
Technical11/25
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
caas.cncaas.cn

首页 _ 中国农业科学院

No description available for this page.

Title Length12 chars

Recommended: 50-60 chars (~74px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (133/147) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

Sitemap reference found

Local SEO

Local Search Readiness

0/100
Poor
15 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F29/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
1/25

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:7%
Words:759
Token eff.:Optimal
Sections/1K:15.8
Depth:1/5

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 (12)
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.
D
52/100
8
Passed
7
Critical
1
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
5/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
11/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
5 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.
16/100
F
3.42 g
CO₂e / view
27.0 MB
Page Weight
5%
Cleaner Than
New Visitor
3.91 g
vs
Returning (cached)
1.96 g
Annual (10K/mo)
410.6 kg
Emission Segments
Data Center
764 mg
Network
821 mg
Device
1.84 g
Resource Breakdown
JavaScript
97.2 KB
Images
22.2 MB
CSS
4.6 MB
HTML
28.7 KB
Green Hosting Not Verified
Huawei Cloud Service
6 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

76%Good
Interactive

HTTPS

No WAF

191d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

09.10.2025

Valid Until

09.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.caas.cncaas.cn

SHA-256 Fingerprint

98:8B:33:E2:09:E1:4C:56:2B:01:8F:79:89:0A:66:25:58:C8:3C:99...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-security-policy
script-src * 'unsafe-inline' 'unsafe-eval' blob:
content-type
text/html
date
Sat, 02 May 2026 08:16:09 GMT
etag
W/"69f4faea-218dc"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

Domain Information

caas.cn

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
47/100
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,minimum-scale=1.0, maximum-scale=1.0
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Microsoft YaHei

WCAG Partial
48/100
Readability
/30
12/30

12px · LH 2.00

Hierarchy
/20
9/20
WCAG
/25
12/25

1:1 min contrast

Performance
/25
15/25

1 font · 2 req

Heading Font

Microsoft YaHei

Sans

Body Font

Microsoft YaHei

Sans12px

Contrast Ratio

1:1

10 issues

Reading Comfort

~45 CPL

Optimal (45–75)
16px
h3
12px
p

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

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

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

❌ 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 MyFonts

Color Palette

8 unique colors
Light
#fafafa
Background· 33.4%
#007071
Primary· 20.400000000000002%
#d4ebe4
Secondary· 13.4%
#df352d
Accent· 13.3%
#f0eee5
Secondary· 8.8%
#edc2af
Accent· 5.8%
#99b6a8
Secondary· 4.2%
#933838
Secondary· 0.5%

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

23 Resources

17
Scripts
6
Styles
2
Async
0
Defer

Top Script Sources

static2022(7)local(4)g_style(4)hm.baidu.com(1)dcs.conac.cn(1)

Website Identity

caas.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 02 May 2026 at 08:17

Historical Analysis & Change Tracking