scichina.com

https://scichina.com· First analyzed 03 May 2026· Updated 03 May 2026

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scichina.com

Mobile

Sponsored

Hosting Provider

Huawei Public Cloud Service

IP Address

49.4.94.66

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS55990

Organization

Huawei Public Cloud Service

Server

Nameservers

dns22.hichina.com.dns21.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.8 s10%

Speed Index

3.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

595 KB

142 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Huawei Public Cloud Service

Technology Stack

8 Technologies Detected

CSS Frameworks

Analytics

Frameworks

Libraries

UI Components

Icon Libraries

SEO Analysis

C64/100

Meta Tags9/15

Content10/12

Headings5/8

Technical16/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

scichina.comscichina.com

SciEngine | Full Process Digital Publishing and Knowledge Service P...

中国科技期刊国际传播和知识服务平台是一个以科技类学术期刊为主要传播经营对象的国际化数字出版传播和知识服务平台。平台借助中国科技出版传媒股份有限公司出版的丰富、优质、专业的学术期刊内容，经过整合、重组，打造生成各种形态的数字化产品，集聚中国科学院乃至国内外的高水平学术期刊资源，实现全方位生产运营、传播和知识服务。

Title truncated.

Title Length98 chars

Recommended: 50-60 chars (~573px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (98 chars, ~573px). Will be truncated in search results.
• Most images missing alt text (147/147) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

203 URLs

203 sub-sitemaps

robots.txt

56 rules

Sitemap reference found

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

F29/100

Bot Access

11/25

Machine Read.

9/25

Schema Data

0/25

Citation

9/25

AI Bot Access

4/14 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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:18%

Words:25,155

Token eff.:Excessive

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

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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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.

44/100

Passed

Critical

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

2/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

3/15

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.

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.

42/100

74 mg

CO₂e / view

595.4 KB

Page Weight

80%

Cleaner Than

New Visitor

84 mg

Returning (cached)

42 mg

Annual (10K/mo)

8.8 kg

Emission Segments

Data Center

16 mg

Network

18 mg

Device

40 mg

Resource Breakdown

JavaScript

248.1 KB

CSS

86.7 KB

HTML

30.2 KB

Other

230.5 KB

Green Hosting Not Verified

Huawei Public Cloud Service

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

50d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

16.06.2025

Valid Until

22.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.sciengine.comsciengine.com

SHA-256 Fingerprint

EC:AB:33:4C:B1:56:EB:76:8F:32:48:40:72:7E:28:7C:FC:0D:66:04...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-language

en-GB

content-length

30575

content-type

text/html;charset=UTF-8

date

Sun, 03 May 2026 06:50:32 GMT

server

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.cstnet.cn

Domain Information

scichina.com

Domain Age

27y 3m

Created

22.01.1999

Expires

22.01.2032

Last Updated

26.07.2022

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

70/100

Mobile Friendly3 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=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Montserrat + Arial

WCAG Partial

59/100

Readability

/30

20/30

14px · LH 1.43

Hierarchy

/20

13/20

1.14x ratio · ✓ H1→H6

WCAG

/25

13/25

2.71:1 min contrast

Performance

/25

13/25

System fonts

Heading Font

Montserrat

Sans16px

Body Font

Arial

Sans14px

Contrast Ratio

2.71:1

15 issues

Reading Comfort

Dual Sans-Serif

left aligned

16px

14px

Minor Second

Scale

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 2.7:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

Buy on MyFonts

Color Palette

8 unique colors

Light

#fefefe

Text· 6.6%

#eaf0fe

Primary· 28.099999999999994%

#2b3e92

Accent· 25.1%

#1f2778

Accent· 14.7%

#3a3649

Secondary· 12.9%

#a0a4b7

Secondary· 5%

#323868

Secondary· 0.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

files.sciengine.com(12)googletagmanager.com(3)local(2)hm.baidu.com(1)cdn.jsdelivr.net(1)

Website Identity

scichina.com

27 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.en

Sponsored

Last analyzed: 03 May 2026 at 06:51

Historical Analysis & Change Tracking