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renrendoc.com

https://renrendoc.com· First analyzed 16 May 2026· Updated 16 May 2026
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renrendoc.com
Desktop screenshot of renrendoc.com
Mobile screenshot of renrendoc.com
Mobile

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Hosting Provider

Suqian Pugongying Network Service Co., Ltd

IP Address

43.248.188.115

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Wuxi, China

ASN

AS4837

Organization

Suqian Pugongying Network Service Co., Ltd

Server

OpenResty

Nameservers

ns4.dnsv4.com.ns3.dnsv4.com.

Performance

77

Core Web Vitals

Weight

First Contentful Paint
2.7 s10%
Speed Index
3.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
112 KB
28 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Suqian Pugongying Network Service Co., Ltd

Technology Stack

3 Technologies Detected

Libraries

1
jQueryv1.12.4

CSS Frameworks

1
Tailwind CSS

Web Servers

1
OpenResty

SEO Analysis

C61/100
17
8
2
Meta Tags13/15
Content12/12
Headings1/8
Technical10/25
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
R
renrendoc.comrenrendoc.com

renrendoc.com人人文库|人人文档_大学文书库|机械CAD图纸|外文文献翻译|毕业设计论文|课件下载-分享平台

人人文库(renrendoc.com)美如初恋,人人文库是一个在线文档分享平台。你可以上传设计图纸,研究报告,设计标准,策划管理方案,论文等电子文档，分享最新的行业资讯。

Title Length60 chars

Recommended: 50-60 chars (~361px / 580px)

Description Length85 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

50 rules

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

F34/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
7/25

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:5%
Words:505
Token eff.:Optimal
Sections/1K:13.9

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...
Upgrade to view recommendations

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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.
C
62/100
7
Passed
5
Critical
1
Warnings
Images & Alt Text
20/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
49/100
A+
14 mg
CO₂e / view
112.1 KB
Page Weight
95%
Cleaner Than
New Visitor
16 mg
vs
Returning (cached)
8 mg
Annual (10K/mo)
1.7 kg
Emission Segments
Data Center
3 mg
Network
3 mg
Device
7 mg
Resource Breakdown
HTML
112.1 KB
Green Hosting Not Verified
Suqian Pugongying Network Service Co., Ltd
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

92d

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

23.07.2025

Valid Until

16.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.renrendoc.comrenrendoc.com

SHA-256 Fingerprint

2E:2B:F5:BC:10:A8:46:BA:F6:7E:08:02:E4:B1:37:EC:B9:59:DB:84...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection
keep-alive
content-type
text/html; charset=utf-8
date
Sat, 16 May 2026 17:37:58 GMT
server
openresty
transfer-encoding
chunked
x-ccdn-cachettl
0
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

renrendoc.com

Domain Age
14y 2m

Created

16.03.2012

Expires

16.03.2029

Last Updated

29.11.2022

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.
F
35/100
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.
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG Partial
44/100
Readability
/30
8/30

12px · LH 2.00

Hierarchy
/20
8/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif

Body Font

Times New Roman

Serif12px

Contrast Ratio

1:1

17 issues

Reading Comfort

~118 CPL

Too wide
24px
h3
12px
p

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

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

❌ Very long lines: ~118 chars/line causes eye strain. Add max-width constraint.

✅ Easy to read: Flesch score 72/100 — accessible to general audiences.

⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 72

Color Palette

7 unique colors
Light
#f5f5f5
Background· 55.800000000000004%
#fda901
Primary· 16.7%
#ff5c1e
Accent· 12.2%
#fe8504
Accent· 8.2%
#f4d59d
Accent· 2%
#e8881b
Accent· 1.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

6
Scripts
3
Styles
0
Async
0
Defer

Top Script Sources

css.renrendoc.com(5)hm.baidu.com(1)

Website Identity

renrendoc.com

14 years old
Location detected: 🇨🇳 Chinavia ip
Alibaba Cloud Computing (Beijing) Co., Ltd.zh

Sponsored

Last analyzed: 16 May 2026 at 17:38

Historical Analysis & Change Tracking