cjol.com

https://cjol.com· First analyzed 01 May 2026· Updated 01 May 2026

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cjol.com

Mobile

Sponsored

Hosting Provider

China Unicom

IP Address

112.95.75.168

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Guangzhou, China

ASN

AS135061

Server

OpenResty

Nameservers

ns2.dnsv4.com.ns1.dnsv4.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

92 ms10%

Speed Index

120 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

23 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

China Unicom

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

OpenResty

Frameworks

ASP.NET

SEO Analysis

F37/100

Meta Tags4/15

Content5/12

Headings0/8

Technical10/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

cjol.comcjol.com

首页-深圳市希捷尔信息技术有限公司

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars (~105px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (16/16) — critical for accessibility and SEO

11 issues found

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Local SEO

Local Search Readiness

6/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F23/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

2/25

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:5%

Words:57

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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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.

37/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

1/15

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.

29/100

216 mg

CO₂e / view

1.7 MB

Page Weight

60%

Cleaner Than

New Visitor

247 mg

Returning (cached)

124 mg

Annual (10K/mo)

26.0 kg

Emission Segments

Data Center

48 mg

Network

52 mg

Device

116 mg

Resource Breakdown

JavaScript

78.5 KB

Images

1.5 MB

CSS

97.7 KB

HTML

10.0 KB

Green Hosting Not Verified

China Unicom

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

14.07.2025

Valid Until

28.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cjol.comcjol.com

SHA-256 Fingerprint

17:B8:34:F3:DE:9D:E9:1D:19:7D:9A:B6:90:F9:C8:3A:7F:A2:2C:2B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-length

878

content-type

text/html

date

Fri, 01 May 2026 17:16:05 GMT

etag

"1ac36e659f56db1:0"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mail.cjol.com

mailgw.cjol.com

Domain Information

cjol.com

Domain Age

28y 8m

Created

25.08.1997

Expires

24.08.2027

Last Updated

05.11.2024

Registrar

Xiamen 35.com Information 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.

52/100

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AAA

69/100

Readability

/30

21/30

16px · LH --

Hierarchy

/20

10/20

WCAG

/25

24/25

7.46:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

7.46:1

WCAG AAA (≥7:1)

Reading Comfort

Single Family

left aligned

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.5:1).

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

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

Buy on MyFonts

Color Palette

10 unique colors

7.31:1 AAA Light

#ffffff

Background· 21.999999999999996%

#615354

Secondary· 5.7%

#0c2f81

Primary· 19.8%

#25448b

Accent· 12.9%

#ad9285

Secondary· 9.4%

#9a6651

Secondary· 8%

#1e2b56

Secondary· 4.7%

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Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

..(1)

Website Identity

cjol.com

28 years old

Location detected: 🇨🇳 Chinavia ip

Xiamen 35.com Information Co., Ltd.en

Sponsored

Last analyzed: 01 May 2026 at 17:35

Historical Analysis & Change Tracking