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5117.net

https://5117.net· First analyzed 22 May 2026· Updated 22 May 2026
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5117.net
Desktop screenshot of 5117.net
Mobile screenshot of 5117.net
Mobile

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Hosting Provider

Alibaba Cloud
alibabacloud.com

IP Address

59.110.212.53

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Apache

Nameservers

ns8.cnmsn.net.ns7.cnmsn.net.

Performance

80

Core Web Vitals

Weight

First Contentful Paint
2.2 s10%
Speed Index
2.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
501 KB
13 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Alibaba Cloud

Technology Stack

3 Technologies Detected

Libraries

1
jQueryv1.9.1

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

D44/100
11
10
3
Meta Tags5/15
Content12/12
Headings3/8
Technical6/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
5
5117.net5117.net

5117我要仪器网

5117我要仪器网

Title Length9 chars

Recommended: 50-60 chars (~51px / 580px)

Description Length9 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (79/122) — 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

Local SEO

Local Search Readiness

7/100
Poor
2 13 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

F28/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
1/25

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:927
Token eff.:Optimal
Sections/1K:74.4

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 2.9w
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.
D
54/100
5
Passed
7
Critical
1
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
5 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.
52/100
A
62 mg
CO₂e / view
500.5 KB
Page Weight
90%
Cleaner Than
New Visitor
71 mg
vs
Returning (cached)
35 mg
Annual (10K/mo)
7.4 kg
Emission Segments
Data Center
14 mg
Network
15 mg
Device
33 mg
Resource Breakdown
JavaScript
58.7 KB
Images
398.9 KB
CSS
28.8 KB
HTML
14.1 KB
Green Hosting Not Verified
Alibaba Cloud
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

259d

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/2

Valid From

06.02.2026

Valid Until

05.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

5117.netwww.5117.net

SHA-256 Fingerprint

A7:AC:45:9F:31:0E:ED:1F:8A:F6:64:8E:EF:8E:BC:DC:6C:96:A5:04...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟣 Private(private)
content-encoding
📦 Gzip(gzip)
content-length
14186
content-type
text/html; charset=utf-8
date
Fri, 22 May 2026 12:15:24 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

hzmx02.mxmail.netease.com
hzmx01.mxmail.netease.com

Domain Information

5117.net

Domain Age
26y 1m

Created

08.04.2000

Expires

08.04.2030

Last Updated

28.08.2025

Registrar

Bizcn.com, Inc.

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
30/100
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Microsoft Yahei

WCAG Partial
39/100
Readability
/30
2/30

12px · LH 2.33

Hierarchy
/20
6/20
WCAG
/25
17/25

1.78:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Microsoft Yahei

Sans

Body Font

Microsoft Yahei

Sans12px

Contrast Ratio

1.78:1

5 issues

Reading Comfort

~186 CPL

Too wide
22px
h2
14px
h3
12px
p

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

⚠️ Wide line spacing (2.33). 1.4–1.6 is optimal for body text.

❌ Very long lines: ~186 chars/line causes eye strain. Add max-width constraint.

❌ Very complex text: Flesch score 3/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.8:1).

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

Buy on MyFontsFlesch 3

Color Palette

8 unique colors
14.94:1 AAA Light
#ffffff
Background· 75%
#272727
Other· 0.4%
#34796d
Primary· 0.3%

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Scripts & Styles

11 Resources

9
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

js(9)

Website Identity

5117.net

021-6125 5117
26 years old
Location detected: 🇨🇳 Chinavia ip
Bizcn.com, Inc.

Sponsored

Last analyzed: 22 May 2026 at 12:16

Historical Analysis & Change Tracking