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book118.com

https://book118.com· First analyzed 01 May 2026· Updated 01 May 2026
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book118.com
Desktop screenshot of book118.com
Mobile screenshot of book118.com
Mobile

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Hosting Provider

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

75

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

1

CSS Frameworks

1

Web Servers

1

SEO Analysis

D46/100
13
11
1
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
B
book118.combook118.com

E书联盟

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

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.

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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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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.
D
53/100
5
Passed
7
Critical
2
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...

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
vs
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...
F

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

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

45

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
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
D
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...

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
h3
12px
p

❌ 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.

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

7
Scripts
3
Styles
0
Async
0
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.

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Last analyzed: 01 May 2026 at 14:01

Historical Analysis & Change Tracking