21food.cn

https://21food.cn· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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21food.cn

Mobile

Sponsored

Hosting Provider

Hangzhou Wangding Technology Co.

IP Address

115.239.209.158

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Hangzhou, China

ASN

AS58461

Organization

Hangzhou Wangding Technology Co.

Server

OpenResty

Performance

Core Web Vitals

Weight

First Contentful Paint

1.8 s10%

Speed Index

2.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

93 KB

24 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hangzhou Wangding Technology Co.

Technology Stack

2 Technologies Detected

Libraries

jQueryv1.11.1

Web Servers

OpenResty

SEO Analysis

F37/100

Meta Tags4/15

Content7/12

Headings6/8

Technical4/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

21food.cn21food.cn

页面访问需验证！

No description available for this page.

Title Length8 chars

Recommended: 50-60 chars (~49px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (2/3) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

14 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.

Sponsored

AI & LLM Readiness

F30/100

Bot Access

20/25

Machine Read.

5/25

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

def. lists

Text ratio:2%

Words:103

Token eff.:Too Short

Depth:1/5

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 (10)

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.

51/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

11/20

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

Forms & Inputs

10/15

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.

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.

45/100

A+

12 mg

CO₂e / view

93.3 KB

Page Weight

95%

Cleaner Than

New Visitor

13 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.4 kg

Emission Segments

Data Center

3 mg

Network

3 mg

Device

6 mg

Resource Breakdown

JavaScript

19.3 KB

Images

24.0 KB

CSS

43.7 KB

HTML

5.9 KB

Other

482 B

Green Hosting Not Verified

Hangzhou Wangding Technology Co.

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

242d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.11.2025

Valid Until

29.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.21food.cn21food.cn

SHA-256 Fingerprint

4A:48:BC:3F:89:EA:19:E0:37:0A:2B:F2:EE:FF:58:21:0E:41:09:2D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-length

1977

content-type

text/html; charset=utf-8

date

Thu, 30 Apr 2026 18:03:32 GMT

server

openresty

set-cookie

client

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

21food.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.

30/100

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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

微软雅黑

WCAG Partial

61/100

Readability

/30

15/30

12px · LH --

Hierarchy

/20

13/20

1.5x ratio · ✓ H1→H6

WCAG

/25

19/25

3.04:1 min contrast

Performance

/25

14/25

1 font

Heading Font

微软雅黑

Sans18px

Body Font

微软雅黑

Sans12px

Contrast Ratio

3.04:1

2 issues

Reading Comfort

Single Font Family

left aligned

18px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ 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

4 unique colors

Light

#ffffff

Background· 81.2%

#e9ecf8

Primary· 13.1%

#e0d2c0

Secondary· 3.1%

#c49170

Secondary· 2.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)verify.21food.cn(3)

Website Identity

21food.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 30 Apr 2026 at 18:04

Historical Analysis & Change Tracking