bjsubway.com

https://bjsubway.com· First analyzed 10 May 2026· Updated 10 May 2026

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bjsubway.com

Mobile

Sponsored

Hosting Provider

China Mobile Communications Corporation

IP Address

36.133.54.195

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Guangzhou, China

ASN

AS9808

Organization

China Mobile Communications Corporation

Server

Nginx

Nameservers

dns1.hichina.com.dns2.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

999 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.4 MB

39 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

China Mobile Communications Corporation

Technology Stack

6 Technologies Detected

CSS Frameworks

Libraries

UI Components

Other

Web Servers

SEO Analysis

F33/100

Meta Tags8/15

Content0/12

Headings0/8

Technical8/21

E-E-A-T0/7

Images1/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

bjsubway.combjsubway.com

北京地铁

北京地铁（Beijing Subway）是中华人民共和国北京市的城市轨道交通系统。规划于1953年，始建于1965年，运营于1969年。是中国第一个地铁系统。截至2025年底，公司在职员工34132人，运营20条线路，运营里程614公里，运营车站380座，换乘站101座。是目前世界上规模最大的城市地铁系统，亦是中...

Description truncated.

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length173 chars

Recommended: 120-160 chars

Issues (3)

• Very thin content (32 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (24/24) — critical for accessibility and SEO

11 issues found

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Local SEO

Local Search Readiness

5/100

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

F24/100

Bot Access

20/25

Machine Read.

1/25

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

Text ratio:0%

Words:31

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...

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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.

47/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

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

5/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

46/100

177 mg

CO₂e / view

1.4 MB

Page Weight

60%

Cleaner Than

New Visitor

202 mg

Returning (cached)

101 mg

Annual (10K/mo)

21.2 kg

Emission Segments

Data Center

40 mg

Network

43 mg

Device

95 mg

Resource Breakdown

JavaScript

116.9 KB

Images

817.8 KB

CSS

479.6 KB

HTML

15.5 KB

Other

586 B

Green Hosting Not Verified

China Mobile Communications Corporation

3 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

96%Excellent

Static / Informational

HTTPS

No WAF

272d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

06.01.2026

Valid Until

07.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.bjsubway.combjsubway.com

SHA-256 Fingerprint

3D:72:AE:A7:F0:56:67:75:55:C4:D9:B7:D8:9A:10:F0:1B:45:AE:FC...

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self'

content-type

text/html

date

Sun, 10 May 2026 23:48:53 GMT

etag

W/"69f1c7ed-7d85"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

bjsubway.com

Domain Age

23y 6m

Created

06.11.2002

Expires

06.11.2026

Last Updated

17.10.2025

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

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.

53/100

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

user-scalable=no, width=device-width, initial-scale=1, minimal-ui

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

System Default + sans-serif

WCAG AA

69/100

Readability

/30

24/30

16px · LH 1.40

Hierarchy

/20

9/20

WCAG

/25

22/25

6.77:1 min contrast

Performance

/25

14/25

0 fonts

Heading Font

System Default

Body Font

sans-serif

Sans16px

Contrast Ratio

6.77:1

WCAG AA (≥4.5:1)

Reading Comfort

Mixed Pairing

left aligned

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.8:1).

✅ Lean font stack: 0 font families keeps load times fast.

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

Color Palette

15 unique colors

Light

#ffffff

Background· 10.5%

#589eea

Primary· 15.9%

#498c59

Secondary· 15.6%

#457750

Secondary· 7.9%

#c4ccd4

Secondary· 7.1%

#a2d1e9

Accent· 6.9%

#d3e3ed

Secondary· 6.8%

#68afd3

Accent· 5.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)

Website Identity

bjsubway.com

23 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.

Sponsored

Last analyzed: 10 May 2026 at 23:49

Historical Analysis & Change Tracking