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knet.cn

https://knet.cn· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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knet.cn
Desktop screenshot of knet.cn
Mobile screenshot of knet.cn
Mobile

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Hosting Provider

IP Address

202.173.11.186

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Haidian, China

ASN

AS38345

Organization

Internet Domain Name System Beijing Engineering Resrarch Center Ltd.

Server

OpenResty

Nameservers

cns1.zdnscloud.net.vns1.zdnscloud.biz.ins1.zdnscloud.com.dns1.zdnscloud.info.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
4.2 s10%
Speed Index
5.5 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.5 MB
30 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Internet Domain Name System Beijing Engineering Resrarch Center Ltd.

Technology Stack

1 Technologies Detected

Web Servers

1

SEO Analysis

F38/100
9
11
2
Meta Tags10/15
Content3/12
Headings0/8
Technical9/21
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
K
knet.cnknet.cn

北龙中网_北龙中网.网址_中文域名_北龙中网(北京)科技有限责任公司官网

北龙中网.网址是北龙中网(北京)科技有限责任公司官网,北龙中网由中国科学院计算机网络信息中心的中科北龙出资组建,主要服务领域中文域名、网址注册、中文域名申请、.网址域名注册等

Title Length36 chars

Recommended: 50-60 chars (~221px / 580px)

Description Length87 chars

Recommended: 120-160 chars

Issues (2)

  • Very thin content (1 words). Search engines need substantial content for ranking.
  • Missing H1 tag — every page should have exactly one H1

Crawlability

Sitemap

Type: standard

robots.txt

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

F26/100
Bot Access
20/25
Machine Read.
6/25
Schema Data
0/25
Citation
0/25

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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:0%
Words:72
Token eff.:Too Short

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 (12)
AI readiness recommendation preview...

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.
C
63/100
7
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
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.
3 recommendations
  • Accessibility recommendation preview...

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.
23/100
E
317 mg
CO₂e / view
2.5 MB
Page Weight
30%
Cleaner Than
New Visitor
363 mg
vs
Returning (cached)
181 mg
Annual (10K/mo)
38.1 kg
Emission Segments
Data Center
71 mg
Network
76 mg
Device
170 mg
Resource Breakdown
JavaScript
420.1 KB
Images
1.5 MB
CSS
40.7 KB
HTML
1.2 KB
Other
582.5 KB
Green Hosting Not Verified
Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
6 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

127d

Certificate Details

Type

Domain Validated (DV)

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

02.03.2026

Valid Until

31.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

xn--fiqq3jr41co80a.xn--ses554gwww.xn--fiqq3jr41co80a.xn--ses554g

SHA-256 Fingerprint

10:C7:85:03:50:5A:4B:3D:5D:C8:6D:AE:5A:DA:BD:95:3F:1A:FA:67...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Sun, 26 Apr 2026 23:29:31 GMT
etag
W/"69e03f83-6fe"
last-modified
Thu, 16 Apr 2026 01:46:43 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mxbiz1.qq.com
mxbiz2.qq.com

Domain Information

knet.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.
C
65/100
Mobile Friendly
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
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

PingFang SC

WCAG Partial
51/100
Readability
/30
12/30

12px · LH --

Hierarchy
/20
9/20
WCAG
/25
17/25

1.02:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

PingFang SC

Body Font

PingFang SC

Sans12px

Contrast Ratio

1.02:1

27 issues

Reading Comfort

~94 CPL

Wide lines
12px
p

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

⚠️ Wide lines: ~94 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 27 elements below WCAG AA threshold (min 1.0:1).

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Color Palette

8 unique colors
Light
#ffffff
Background· 16.1%
#2b2c5c
Primary· 42.2%
#2ba2da
Accent· 17.3%
#e6f0f6
Secondary· 9.4%
#50acd9
Accent· 2.5%
#687288
Secondary· 2.3%
#512b4d
Secondary· 2.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

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

8 Resources

8
Scripts
0
Styles
0
Async
0
Defer

Top Script Sources

local(5)hm.baidu.com(1)ipv6.knet.cn(1)xn--nqq01hr76bkgi.xn--26qu4xpon.xn--ses554g(1)

Website Identity

knet.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 26 Apr 2026 at 23:30

Historical Analysis & Change Tracking