vlpsz.com

https://vlpsz.com· First analyzed 29 May 2026· Updated 29 May 2026

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vlpsz.com

Mobile

Sponsored

Hosting Provider

Shenzhen Qianhai bird cloud computing Co. Ltd.

IP Address

43.226.46.233

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Guangzhou, China

ASN

AS134762

Organization

Shenzhen Qianhai bird cloud computing Co. Ltd.

Server

Nginx

Nameservers

dns9.hichina.com.dns10.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.7 MB

51 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

华主题-Hua_No.466v466Custom

by HUAtheme

View Theme

Technology Stack

5 Technologies Detected

Libraries

UI Components

CSS Frameworks

Web Servers

SEO Analysis

D56/100

Meta Tags14/15

Content7/12

Headings1/8

Technical16/25

E-E-A-T0/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

vlpsz.comvlpsz.com

双轴心导轨,线性滑轨, 直线导轨,双轴心导轨厂家,直线滑轨,导轨,线性模组,VLP,滑轨厂家-伟力普

深圳市伟力普自动化设备有限公司：是中国大陆一家大型的自动化设备生产.研发.销售为一体的高新技术企业。公司主要生产销售：双轴心导轨，直线导轨,线性模组,滚珠丝杆,微型导轨,点胶机平台,焊锡机平台，龙门架平台，以及一些非标自动化设备的定做

Title Length50 chars

Recommended: 50-60 chars (~292px / 580px)

Description Length117 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

13/100

Poor

4 11 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F26/100

Bot Access

20/25

Machine Read.

2/25

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

def. lists

Text ratio:5%

Words:150

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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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.

65/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

7/20

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

9/15

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.

14/100

469 mg

CO₂e / view

3.7 MB

Page Weight

15%

Cleaner Than

New Visitor

536 mg

Returning (cached)

268 mg

Annual (10K/mo)

56.3 kg

Emission Segments

Data Center

105 mg

Network

113 mg

Device

252 mg

Resource Breakdown

JavaScript

71.9 KB

Images

1.8 MB

CSS

1.8 MB

HTML

7.9 KB

Green Hosting Not Verified

Shenzhen Qianhai bird cloud computing Co. Ltd.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

83d

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

22.05.2026

Valid Until

20.08.2026

Subject Alternative Names (2)

vlpsz.comwww.vlpsz.com

SHA-256 Fingerprint

19:2D:07:45:F9:FF:A6:D1:15:28:66:71:D8:39:04:6D:17:58:E0:1C...

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 00:11:05 GMT

link

<https://www.vlpsz.com/wp-json/>; rel="https://api.w.org/"

server

nginx

strict-transport-security

max-age=31536000

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

vlpsz.com

Domain Age

9y 11m

Created

11.06.2016

Expires

11.06.2029

Last Updated

09.08.2023

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.

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=1.0, maximum-scale=1.0, user-scalable=0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Microsoft Yahei

WCAG Partial

49/100

Readability

/30

16/30

14px · LH 2.00

Hierarchy

/20

5/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Microsoft Yahei

Body Font

Microsoft Yahei

Sans14px

Contrast Ratio

1:1

7 issues

Reading Comfort

~45 CPL

Optimal (45–75)

18px

14px

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

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

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Buy on MyFonts

Color Palette

6 unique colors

Light

#ffffff

Background· 22.3%

#2758ad

Primary· 67.7%

#5071b0

Secondary· 3.4%

#c4cbd8

Secondary· 3%

#1c4181

Accent· 2%

#3d4b91

Secondary· 1.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

vlpsz.com(5)sdk.51.la(1)

Website Identity

vlpsz.com

13923455189

9 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.zh-CN

Sponsored

Last analyzed: 29 May 2026 at 00:11

Historical Analysis & Change Tracking