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3vjia.com

https://3vjia.com· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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3vjia.com
Desktop screenshot of 3vjia.com
Mobile screenshot of 3vjia.com
Mobile

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Hosting Provider

Alibaba Cloud
alibabacloud.com

IP Address

120.79.4.93

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shenzhen, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Nameservers

ns3.dnsv4.com.ns4.dnsv4.com.

Performance

78

Core Web Vitals

Weight

First Contentful Paint
2.6 s10%
Speed Index
3.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
154 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Alibaba Cloud

Technology Stack

6 Technologies Detected

Libraries

2
jQuery
Animate.css

Frameworks

1
Vue.jsv2.6.11

Meta Frameworks

1
Nuxt.js

Other

1
AOS (Animate On Scroll)

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D43/100
10
13
2
Meta Tags7/15
Content3/12
Headings7/8
Technical11/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
3
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Title Length28 chars

Recommended: 50-60 chars (~173px / 580px)

Description Length90 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (1 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (25/28) — critical for accessibility and SEO

15 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

31 URLs

robots.txt

20 rules

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.

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AI & LLM Readiness

F27/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
0/25

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:1%
Words:348
Token eff.:Optimal

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.
C
61/100
7
Passed
6
Critical
0
Warnings
Images & Alt Text
20/20
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
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.
3 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.
35/100
C
160 mg
CO₂e / view
1.3 MB
Page Weight
70%
Cleaner Than
New Visitor
182 mg
vs
Returning (cached)
91 mg
Annual (10K/mo)
19.2 kg
Emission Segments
Data Center
36 mg
Network
38 mg
Device
86 mg
Resource Breakdown
JavaScript
748.4 KB
Images
110.8 KB
CSS
411.1 KB
HTML
19.0 KB
Other
1.2 KB
Green Hosting Not Verified
Alibaba Cloud
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

53d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.06.2025

Valid Until

24.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.3vjia.com3vjia.com

SHA-256 Fingerprint

71:C7:A9:6D:4E:58:69:51:23:AF:46:7B:44:2E:05:55:91:D4:CD:D2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
none
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Mon, 01 Jun 2026 18:38:03 GMT
etag
"1baf0-XvWKlTR3nl/UzvnIwDIJSyoswFM"
magiccube-req-id
5941b2964e0cf78c2247798b108d8610
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

mail.3vjia.com

Domain Information

3vjia.com

Domain Age
13y 4m

Created

07.01.2013

Expires

07.01.2027

Last Updated

16.12.2025

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.
D
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,maximum-scale=1,user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
66/100
Readability
/30
23/30

16px · LH 1.50

Hierarchy
/20
10/20

0.88x ratio

WCAG
/25
12/25

1:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

-apple-system

Sans14px

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

23 issues

Reading Comfort

~93 CPL

Wide lines
14px
h1
40px
h2
50px
h3
16px
p
Perfect Fifth
Scale

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Wide lines: ~92 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Color Palette

10 unique colors
12.01:1 AAA Light
#ffffff
Background· 45.7%
#373639
Text· 7.8%
#010011
Primary· 20.299999999999997%
#826de2
Accent· 5.9%
#a360ed
Accent· 3.1%
#141423
Secondary· 2.7%
#bab0e5
Secondary· 1.7%
#4d53b6
Secondary· 0.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
9
Async
8
Defer

Top Script Sources

3vj-fe.3vjia.com(6)3vjia.com(4)hm.baidu.com(4)s.union.360.cn(2)hmcdn.baidu.com(1)

Website Identity

3vjia.com

13 years old
Location detected: 🇨🇳 Chinavia ip
Alibaba Cloud Computing (Beijing) Co., Ltd.

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Last analyzed: 01 Jun 2026 at 18:38

Historical Analysis & Change Tracking