zslblog.cn

https://zslblog.cn· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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zslblog.cn

Mobile

Sponsored

Hosting Provider

Posix Systems (Pty) Ltd

IP Address

160.124.16.144

Site Location

🇨🇳 Chinavia tld

Server Location

🇿🇦 Pretoria, South Africa

ASN

AS132839

Organization

Posix Systems (Pty) Ltd

Server

Nginx

CDN

Nameservers

ns1.julydns.com.ns2.julydns.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

948 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

101 KB

15 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Posix Systems (Pty) Ltd

CDN

Technology Stack

3 Technologies Detected

Libraries

jQueryv3.1.0

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

D51/100

Meta Tags14/15

Content11/12

Headings0/8

Technical11/21

E-E-A-T0/7

Images0/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

zslblog.cnzslblog.cn

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Title Length44 chars

Recommended: 50-60 chars (~272px / 580px)

Description Length136 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

6 issues found

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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

F25/100

Bot Access

20/25

Machine Read.

0/25

Schema Data

0/25

Citation

5/25

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:5,651

Token eff.:Excessive

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

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.

2 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.

54/100

A+

13 mg

CO₂e / view

101.1 KB

Page Weight

95%

Cleaner Than

New Visitor

14 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.5 kg

Emission Segments

Data Center

3 mg

Network

3 mg

Device

7 mg

Resource Breakdown

JavaScript

37.0 KB

CSS

24.5 KB

HTML

39.6 KB

Green Hosting Not Verified

Posix Systems (Pty) Ltd

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

39d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (2)

www.zslblog.cnzslblog.cn

SHA-256 Fingerprint

EA:5A:9D:E5:21:48:22:90:33:49:72:F1:7F:A5:96:C7:F0:8C:4E:C9...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Thu, 04 Jun 2026 06:13:01 GMT

server

nginx

vary

Accept-Encoding

x-cache

BYPASS

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

zslblog.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.

46/100

Not 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

initial-scale=1,user-scalable=no,maximum-scale=1,width=device-width

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Microsoft YaHei

WCAG Partial

51/100

Readability

/30

12/30

14px · LH 2.14

Hierarchy

/20

9/20

WCAG

/25

14/25

1.09:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Microsoft YaHei

Body Font

Microsoft YaHei

Sans14px

Contrast Ratio

1.09:1

2 issues

Reading Comfort

~48 CPL

Optimal (45–75)

14px

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

⚠️ Wide line spacing (2.14). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 6/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.1:1).

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 6

Color Palette

3 unique colors

Light

#ffffff

Background· 92.30000000000003%

#bcadae

Primary· 4.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)c.cnzz.com(1)s4.cnzz.com(1)

Website Identity

zslblog.cn

Location detected: 🇨🇳 Chinavia tld

zh-CN

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Last analyzed: 04 Jun 2026 at 06:13

Historical Analysis & Change Tracking