longzhu.com

https://longzhu.com· First analyzed 13 May 2026· Updated 13 May 2026

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longzhu.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

43.109.101.5

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24429

Organization

Alibaba.com LLC

Server

Tengine

CDN

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.1 MB

80 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

CDN

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Tengine

SEO Analysis

D48/100

Meta Tags14/15

Content5/12

Headings0/8

Technical11/21

E-E-A-T0/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

longzhu.comlongzhu.com

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Title Length44 chars

Recommended: 50-60 chars (~272px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (15/15) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F29/100

Bot Access

20/25

Machine Read.

6/25

Schema Data

0/25

Citation

3/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:57

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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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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

8/15

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.

44/100

138 mg

CO₂e / view

1.1 MB

Page Weight

70%

Cleaner Than

New Visitor

158 mg

Returning (cached)

79 mg

Annual (10K/mo)

16.6 kg

Emission Segments

Data Center

31 mg

Network

33 mg

Device

74 mg

Resource Breakdown

JavaScript

865.7 KB

Images

78.2 KB

CSS

172.3 KB

HTML

2.2 KB

Green Hosting Not Verified

Alibaba Cloud

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

21d

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

06.03.2026

Valid Until

03.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

longzhu.comwww.longzhu.com

SHA-256 Fingerprint

A3:58:DB:00:4F:09:98:98:E7:D1:E7:45:13:6B:7E:58:40:88:95:51...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

18883

ali-swift-global-savetime

1778670419

cache-control

🟢 1 Month(max-age=2592000)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

1940

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

longzhu.com

Domain Age

23y 6m

Created

03.11.2002

Expires

03.11.2030

Last Updated

12.12.2024

Registrar

eName Technology 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.

57/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Fail

61/100

Readability

/30

18/30

16px · LH 1.00

Hierarchy

/20

8/20

WCAG

/25

15/25

2.85:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

2.85:1

7 issues

Reading Comfort

Single Family

left aligned

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

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

❌ Low contrast: 7 elements fail WCAG AA (min 2.9:1). Increase text/background contrast.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

5 unique colors

Dark

#000000

Background· 55.50000000000001%

#f7f8fa

Primary· 24%

#1d277c

Accent· 17.4%

#71739f

Secondary· 2.4%

#0d1341

Accent· 0.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)c.cnzz.com(1)s9.cnzz.com(1)longzhu-live-oss.wulalive.com(1)

Website Identity

longzhu.com

23 years old

Location detected: 🇫🇮 Finlandvia ip

eName Technology Co., Ltd.en

Sponsored

Last analyzed: 13 May 2026 at 16:22

Historical Analysis & Change Tracking