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12339.gov.cn

https://12339.gov.cn· First analyzed 24 May 2026· Updated 24 May 2026
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12339.gov.cn
Desktop screenshot of 12339.gov.cn
Mobile screenshot of 12339.gov.cn
Mobile

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Hosting Provider

Chinanet HN

IP Address

124.232.185.70

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Qingyuan, China

ASN

AS4134

Organization

Chinanet HN

Nameservers

ns2.icloudgslb.com.ns1.icloudgslb.com.

Performance

83

Core Web Vitals

Weight

First Contentful Paint
2.0 s10%
Speed Index
2.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
18 KB
18 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Chinanet HN

Technology Stack

2 Technologies Detected

Libraries

1
jQuery

Languages

1
PHPv5.4.36

SEO Analysis

D41/100
11
11
1
Meta Tags5/15
Content7/12
Headings5/8
Technical9/21
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
1
12339.gov.cn12339.gov.cn

国家安全机关举报受理平台

国家安全网络举报受理平台

Title Length12 chars

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

Description Length12 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (6/6) — critical for accessibility and SEO

12 issues found

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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

F25/100
Bot Access
20/25
Machine Read.
4/25
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:16%
Words:107
Token eff.:Too Short
Sections/1K:18.7
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
53/100
7
Passed
6
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
8/20
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...
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.
49/100
A+
2 mg
CO₂e / view
17.6 KB
Page Weight
95%
Cleaner Than
New Visitor
3 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
264 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
HTML
17.6 KB
Green Hosting Not Verified
Chinanet HN
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

101d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

China Financial Certification Authority

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

22.08.2025

Valid Until

03.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.12339.gov.cn12339.gov.cn

SHA-256 Fingerprint

00:6B:4B:EA:19:90:AA:2A:F8:7C:7D:DB:96:AE:1F:0D:8C:19:A8:A6...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-credentials
true
access-control-allow-methods
GET,POST
access-control-allow-origin
*
cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
connection
keep-alive
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

12339.gov.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.
D
50/100
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=0.29,maximum-scale=1
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Hiragino Sans GB

WCAG Partial
65/100
Readability
/30
22/30

16px · LH 1.20

Hierarchy
/20
11/20

5.25x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
16/25

2 fonts

Heading Font

Hiragino Sans GB

Sans84px

Body Font

Hiragino Sans GB

Sans16px

Contrast Ratio

1:1

16 issues

Reading Comfort

~47 CPL

Optimal (45–75)
84px
h1
18px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

❌ Broken heading hierarchy: 3 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

✅ Strong hierarchy: Headlines are 5.2x larger than body text.

Buy on MyFonts

Color Palette

13 unique colors
Light
#3149b7
Primary· 16.4%
#fdf0ba
Accent· 14.7%
#f6d3b9
Accent· 13.6%
#de9353
Accent· 7.4%
#f4d26e
Accent· 7.3%
#fbe7d4
Accent· 6.6%
#f5d58b
Accent· 6.4%
#b02a26
Accent· 6.4%

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Scripts & Styles

11 Resources

6
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

12339.gov.cn(6)

Website Identity

12339.gov.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 24 May 2026 at 20:24

Historical Analysis & Change Tracking