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world51tech.com

https://world51tech.com· First analyzed 29 May 2026· Updated 29 May 2026
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world51tech.com
Desktop screenshot of world51tech.com
Mobile screenshot of world51tech.com
Mobile

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Hosting Provider

Tencent Cloud
cloud.tencent.com

IP Address

49.235.147.56

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shanghai, China

ASN

AS45090

Organization

Tencent cloud computing (Beijing) Co., Ltd.

Server

Nginx

Nameservers

can.dnspod.net.rap.dnspod.net.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
4.9 s10%
Speed Index
6.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.9 MB
245 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
Tencent Cloud

Technology Stack

34 Technologies Detected

Plugins

21
SurecartHaru VidiGetwid
WooCommerce
Bbpress
Contact Form 7
Download ManagerGeotargetingGroovy Menu FreeResponsive Accordion And CollapseThemeisle CompanionWise ChatWzbaibaoxiangEychat
TablePress
Elementor
Online Contact WidgetWpappninjaEyoungGeoip Detect
Wpforms Lite

Libraries

4
jQueryv3.7.1
jQuery UI
Underscore.jsAnimate.css

UI Components

2
SwiperSlick Carousel

CSS Frameworks

2
Bootstrapv1.0.2
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

D54/100
15
10
1
Meta Tags8/15
Content6/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
W
world51tech.comworld51tech.com

*•.威星系统.•*(*).*.WeiStarTech.*.~YWSTCL~ – 云南威星系统技术有限公司{*****}Yunnan ...

云南威星系统技术有限公司，成立于2022年08月29日，位于云南省昭通市威信县长安镇，公司秉承以诚信为本，以仁愛之心做事，用感恩之心做人！主要是从事软件和信息技术服务业为主的企业。企业注册资本10010万人民币，实缴资本10010万人民币。经互联网大数据分析，云南威星系统技术有限公司对外投资了1家企业；知识产权方...

Title truncated. Description truncated.
Title Length102 chars

Recommended: 50-60 chars (~617px / 580px)

Description Length189 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (102 chars, ~617px). Will be truncated in search results.

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100
Poor
4 11 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

F33/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
6/25

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:569
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary214w
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.
B
75/100
10
Passed
5
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
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.
25/100
F
499 mg
CO₂e / view
3.9 MB
Page Weight
15%
Cleaner Than
New Visitor
571 mg
vs
Returning (cached)
285 mg
Annual (10K/mo)
59.9 kg
Emission Segments
Data Center
112 mg
Network
120 mg
Device
268 mg
Resource Breakdown
JavaScript
764.2 KB
Images
1.5 MB
CSS
1.5 MB
Fonts
81.2 KB
HTML
60.6 KB
Other
4.7 KB
Green Hosting Not Verified
Tencent Cloud
7 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

8d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

TrustAsia Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.03.2026

Valid Until

06.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

world51tech.comwww.world51tech.com

SHA-256 Fingerprint

40:1C:A6:4F:93:52:E9:42:D2:EB:67:7F:9D:1E:9D:51:F5:77:91:FC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 08:58:22 GMT
last-modified
Fri, 29 May 2026 01:15:08 GMT
server
nginx
strict-transport-security
max-age=31536000
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

smtp.world51tech.com
101.42.99.220

Domain Information

world51tech.com

Domain Age
3y 9m

Created

17.08.2022

Expires

17.08.2030

Last Updated

29.03.2026

Registrar

DNSPod, Inc.

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.
B
78/100
Mobile Friendly15 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
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Helvetica + 微软雅黑

WCAG Partial
57/100
Readability
/30
22/30

16px · LH 1.60

Hierarchy
/20
12/20

2.62x ratio

WCAG
/25
13/25

1.09:1 min contrast

Performance
/25
10/25

System fonts

Heading Font

Helvetica

Sans42px

Body Font

微软雅黑

Sans16px

Contrast Ratio

1.09:1

36 issues

Reading Comfort

~74 CPL

Optimal (45–75)
42px
h1
18px
h4
16px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~74 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 36 elements below WCAG AA threshold (min 1.1:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 0

Color Palette

11 unique colors
Light
#ffffff
Background· 15.399999999999999%
#334c51
Secondary· 20.6%
#1e73be
Primary· 0%
#c1c4d4
Secondary· 14.8%
#7c95bd
Secondary· 10.2%
#d6d6e2
Secondary· 7.6%
#9dacca
Secondary· 7.2%
#4e6364
Secondary· 4.1%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

2
LinkedIn WidgetsFree
Facebook SDKFree

Social widgets and sharing tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
4
Async
2
Defer

Top Script Sources

world51tech.com(10)hm.baidu.com(4)p.data.cctv.com(2)js.surecart.com(1)js.data.cctv.com(1)

Website Identity

world51tech.com

[email protected]
166 0871 6091
3 years old
Location detected: 🇨🇳 Chinavia ip
DNSPod, Inc.en-US

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Last analyzed: 29 May 2026 at 08:59

Historical Analysis & Change Tracking