doc88.com

https://doc88.com· First analyzed 26 Apr 2026· Updated 26 Apr 2026

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doc88.com

Mobile

Sponsored

Hosting Provider

China Unicom Cloud Data Company Limited

IP Address

120.52.152.52

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS133119

Organization

China Unicom Cloud Data Company Limited

Server

Nginx

Nameservers

ns1.dnsv3.com.ns2.dnsv3.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.1 s10%

Speed Index

4.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

64 KB

105 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

China Unicom Cloud Data Company Limited

Technology Stack

3 Technologies Detected

Libraries

jQueryv1.9.1

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

D52/100

Meta Tags7/15

Content10/12

Headings8/8

Technical12/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

doc88.comdoc88.com

道客巴巴-在线文档分享平台

道客巴巴(doc88.com)是一个在线文档分享平台。你可以上传学术论文,研究报告,行业标准,课后答案,教学课件,工作总结,作文等电子文档，可以自由交换文档，还可以分享最新的行业资讯。

Title Length13 chars

Recommended: 50-60 chars (~80px / 580px)

Description Length92 chars

Recommended: 120-160 chars

Issues (2)

• Most images missing alt text (65/66) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

9/100

Poor

3 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

F34/100

Bot Access

20/25

Machine Read.

8/25

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:4%

Words:649

Token eff.:Optimal

Sections/1K:18.5

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 1.3w

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...

Upgrade to view recommendations

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.

45/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

3/15

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

5/15

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.

47/100

A+

8 mg

CO₂e / view

63.8 KB

Page Weight

95%

Cleaner Than

New Visitor

9 mg

Returning (cached)

5 mg

Annual (10K/mo)

948 g

Emission Segments

Data Center

2 mg

Network

2 mg

Device

4 mg

Resource Breakdown

JavaScript

4.9 KB

Images

8.2 KB

CSS

1.6 KB

HTML

11.8 KB

Other

37.2 KB

Green Hosting Not Verified

China Unicom Cloud Data Company Limited

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

5%Critical

Critical / Transactional

HTTPS

No WAF

205d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

17.10.2025

Valid Until

17.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.doc88.comdoc88.com

SHA-256 Fingerprint

8C:38:44:58:FC:50:2C:11:68:03:07:42:7E:61:2E:47:DF:EE:19:97...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self'; base-uri 'self'; form-action 'self'; fra...

content-type

text/html; charset=utf-8

date

Sun, 26 Apr 2026 13:22:17 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mxdomain.qq.com

Domain Information

doc88.com

Domain Age

18y 4m

Created

15.12.2007

Expires

15.12.2030

Last Updated

10.07.2025

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.

43/100

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.

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Microsoft Yahei

WCAG Partial

60/100

Readability

/30

17/30

14px · LH 1.71

Hierarchy

/20

12/20

1x ratio · ✓ H1→H6

WCAG

/25

17/25

1.54:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Microsoft Yahei

Sans14px

Body Font

Microsoft Yahei

Sans14px

Contrast Ratio

1.54:1

11 issues

Reading Comfort

~59 CPL

Optimal (45–75)

14px

16px

24px

14px

Perfect Fourth

Scale

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

✅ Optimal line length: ~59 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 48/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.5:1).

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

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

Buy on MyFontsFlesch 48

Color Palette

8 unique colors

Light

#ffffff

Background· 62.9%

#0e5dfb

Primary· 10.9%

#1444ec

Accent· 6.3%

#4f4269

Secondary· 6.3%

#7ab9dc

Accent· 4.1%

#5b76b6

Secondary· 1.8%

#f8f2e4

Accent· 0.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.doc88.com(9)local(1)

Website Identity

doc88.com

18 years old

Location detected: 🇨🇳 Chinavia ip

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

Sponsored

Last analyzed: 26 Apr 2026 at 13:23

Historical Analysis & Change Tracking