book118.com

https://book118.com· First analyzed 01 May 2026· Updated 01 May 2026

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book118.com

Mobile

Sponsored

Hosting Provider

Chinanet JS

IP Address

222.187.225.2

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Nanjing, China

ASN

AS4134

Organization

Chinanet JS

Server

OpenResty

Nameservers

ns4.dnsv2.com.ns3.dnsv2.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.4 s10%

Speed Index

4.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

128 KB

39 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chinanet JS

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Web Servers

OpenResty

SEO Analysis

D46/100

Meta Tags8/15

Content8/12

Headings1/8

Technical10/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

book118.combook118.com

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E书联盟提供了文档网现有的技术、业务成果，提供了一系列在线文档工具,包含有在线PDF转换成Word转换器,内容非法检测,色情检测,宗教检测,政府公文检测,垃圾检测,文档原创度检测,文档重复检测, 标题重复检测,收录分析,排名分析,竞品分析,唯一性分析,长尾关键词推荐,文档需求挖掘,文档价格预测,智能定价,原创检测...

Description truncated.

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length199 chars

Recommended: 120-160 chars

Issues (1)

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

12 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

549 rules

Allows all crawlers

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

F24/100

Bot Access

20/25

Machine Read.

1/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:7%

Words:177

Token eff.:Too Short

Sections/1K:50.8

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

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.

53/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

4/20

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

0/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

6 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

A+

16 mg

CO₂e / view

127.9 KB

Page Weight

95%

Cleaner Than

New Visitor

18 mg

Returning (cached)

9 mg

Annual (10K/mo)

1.9 kg

Emission Segments

Data Center

4 mg

Network

4 mg

Device

9 mg

Resource Breakdown

JavaScript

48.6 KB

Images

4.7 KB

CSS

27.6 KB

HTML

46.7 KB

Other

355 B

Green Hosting Not Verified

Chinanet JS

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

114d

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/1.1

Valid From

23.07.2025

Valid Until

23.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.book118.combook118.com

SHA-256 Fingerprint

13:33:EF:0A:6A:D8:12:15:65:34:DA:0C:22:A2:46:FC:74:17:C4:12...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

keep-alive

content-type

text/html; charset=utf-8

date

Fri, 01 May 2026 14:00:14 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxbiz2.qq.com

mxbiz1.qq.com

Domain Information

book118.com

Domain Age

20y 11m

Created

29.05.2005

Expires

29.05.2035

Last Updated

13.03.2026

Registrar

Chengdu West Dimension Digital Technology Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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, maximum-scale=1, user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

PingFang SC

WCAG Partial

49/100

Readability

/30

11/30

12px · LH --

Hierarchy

/20

8/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

16/25

1 font

Heading Font

PingFang SC

Sans

Body Font

PingFang SC

Sans12px

Contrast Ratio

1:1

3 issues

Reading Comfort

~80 CPL

Wide lines

22px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide lines: ~80 chars/line. Use max-width: 65ch for comfortable reading.

✅ Easy to read: Flesch score 74/100 — accessible to general audiences.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 74

Color Palette

7 unique colors

Light

#ffffff

Background· 67.39999999999999%

#317efb

Primary· 12%

#1d2f4f

Secondary· 6.2%

#a5b1bb

Secondary· 5.5%

#d7e0dc

Secondary· 5.2%

#eff2f5

Secondary· 3.6%

#326dd4

Accent· 0.3%

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Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)js.users.51.la(1)

Website Identity

book118.com

20 years old

Location detected: 🇨🇳 Chinavia ip

Chengdu West Dimension Digital Technology Co., Ltd.

Sponsored

Last analyzed: 01 May 2026 at 14:01

Historical Analysis & Change Tracking