zlf.cn

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

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zlf.cn

Mobile

Sponsored

Hosting Provider

Chinanet SC

IP Address

222.210.35.3

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Chengdu, China

ASN

AS38283

Organization

Chinanet SC

Server

Nginx

Performance

100

Core Web Vitals

Weight

First Contentful Paint

554 ms10%

Speed Index

720 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

42 KB

93 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Nuxt.js

Infrastructure

Hosting

Chinanet SC

Technology Stack

4 Technologies Detected

Meta Frameworks

CSS Frameworks

Web Servers

Libraries

SEO Analysis

F35/100

Meta Tags5/15

Content3/12

Headings0/8

Technical9/21

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

zlf.cnzlf.cn

周六福珠宝股份有限公司

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length11 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (19/19) — critical for accessibility and SEO

15 issues found

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Local SEO

Local Search Readiness

1/100

Poor

16 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.

1/25

Schema Data

0/25

Citation

4/25

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:94

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.

38/100

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

7/15

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

7/15

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.

5 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.

57/100

A+

5 mg

CO₂e / view

41.6 KB

Page Weight

95%

Cleaner Than

New Visitor

6 mg

Returning (cached)

3 mg

Annual (10K/mo)

612 g

Emission Segments

Data Center

1 mg

Network

1 mg

Device

3 mg

Resource Breakdown

HTML

41.6 KB

Green Hosting Not Verified

Chinanet SC

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

193d

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

15.12.2025

Valid Until

14.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

zlf.cnwww.zlf.cn

SHA-256 Fingerprint

2B:40:BF:7C:DA:E6:28:E9:61:31:EB:D9:61:25:24:37:B8:83:57:CE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-headers

X-Requested-With

access-control-allow-methods

GET,POST,OPTIONS

access-control-allow-origin

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Thu, 04 Jun 2026 19:38:06 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

zlf.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.

56/100

Mobile Friendly2 breakpoints

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Chinese Quote

WCAG AA

64/100

Readability

/30

21/30

16px · LH --

Hierarchy

/20

10/20

WCAG

/25

19/25

6.05:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Chinese Quote

Body Font

Chinese Quote

Sans16px

Contrast Ratio

6.05:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.0:1).

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

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

Buy on MyFonts

Color Palette

6 unique colors

3.74:1 AA Large Light

#ffffff

Background· 90.10000000000001%

#928080

Secondary· 0.3%

#f0dfd8

Primary· 1.3%

#7d9d7a

Secondary· 0%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)sdk.51.la(1)

Website Identity

zlf.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 04 Jun 2026 at 19:38

Historical Analysis & Change Tracking