siat.ac.cn

https://siat.ac.cn· First analyzed 22 May 2026· Updated 22 May 2026

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siat.ac.cn

Mobile

Sponsored

Hosting Provider

CSTNET's IP

IP Address

159.226.242.62

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Beijing, China

ASN

AS7497

Organization

CSTNET's IP

Nameservers

ns2.sfn.cn.ns1.sfn.cn.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.8 s10%

Speed Index

4.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

22.3 MB

101 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

CSTNET's IP

Technology Stack

8 Technologies Detected

Libraries

CSS Frameworks

UI Components

Other

AOS (Animate On Scroll)

Icon Libraries

Font Awesome

SEO Analysis

D47/100

Meta Tags9/15

Content10/12

Headings1/8

Technical12/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

siat.ac.cnsiat.ac.cn

中国科学院深圳先进技术研究院

中国科学院深圳先进技术研究院重点布局医学影像与科学仪器、定量合成生物学、集成电路材料与封装、脑机接口与智能系统、脑解析与灵长类模型、医疗器械与医疗装备、智能医药与健康数据、先进材料与碳中和等领域，在高端医学影像、脑科学、先进电子封装材料、肿瘤精准治疗技术、合成生物器件关键技术不断实现突破，重大科技成果不断涌现。

Title Length14 chars

Recommended: 50-60 chars (~86px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (115/115) — critical for accessibility and SEO

12 issues found

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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.

8/25

Schema Data

0/25

Citation

3/25

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:4%

Words:495

Token eff.:Optimal

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 (11)

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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

9/15

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

2.83 g

CO₂e / view

22.3 MB

Page Weight

Cleaner Than

New Visitor

3.23 g

Returning (cached)

1.62 g

Annual (10K/mo)

339.2 kg

Emission Segments

Data Center

631 mg

Network

679 mg

Device

1.52 g

Resource Breakdown

Images

22.3 MB

HTML

23.9 KB

Green Hosting Not Verified

CSTNET's IP

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

No WAF

100d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

30.07.2025

Valid Until

30.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.siat.ac.cnsiat.ac.cn

SHA-256 Fingerprint

5A:05:BB:55:05:52:24:A5:7E:06:EF:82:C3:CC:18:2D:EB:12:6C:60...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors *.cas.cn

content-type

text/html

date

Fri, 22 May 2026 03:31:40 GMT

transfer-encoding

chunked

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.cstnet.cn

Domain Information

siat.ac.cn

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.

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,user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

61/100

Readability

/30

14/30

12px · LH 1.50

Hierarchy

/20

9/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Arial

Body Font

Arial

Sans12px

Contrast Ratio

1:1

32 issues

Reading Comfort

Single Family

left aligned

14px

12px

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

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

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

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

Color Palette

2 unique colors

Dark

#0c0c0c

Background· 97.79999999999998%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

siat.ac.cn(9)

Website Identity

siat.ac.cn

Location detected: 🇨🇳 Chinavia tld

zh-cmn-Hans

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Last analyzed: 22 May 2026 at 03:32

Historical Analysis & Change Tracking