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open.com.cn

https://open.com.cn· First analyzed 22 May 2026· Updated 22 May 2026
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open.com.cn
Desktop screenshot of open.com.cn
Mobile screenshot of open.com.cn
Mobile

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Hosting Provider

Tencent Cloud
cloud.tencent.com

IP Address

82.156.161.103

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Beijing, China

ASN

AS45090

Organization

Tencent Cloud Computing (Beijing) Co., Ltd

Server

Lego Server

Nameservers

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

Performance

73

Core Web Vitals

Weight

First Contentful Paint
12.9 s10%
Speed Index
16.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3 MB
47 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Tencent Cloud

Technology Stack

5 Technologies Detected

Languages

2
Go
PHPv7.2.1

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Customer Support

1
Zendesk

SEO Analysis

D48/100
12
9
2
Meta Tags13/15
Content7/12
Headings0/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
O
open.com.cnopen.com.cn

奥鹏教育-集考研,MBA,出国留学,职业证书,IT培训等职业教育服务提供者,打造“互联网+”职业教育新生态

奥鹏教育-中国职业教育综合服务提供者,致力与多方共建“互联网+”职业教育新生态,业务覆盖考研,MBA,出国留学,职业证书,IT培训,校企合作,院校信息化合作,职业教育合作。

Title Length53 chars

Recommended: 50-60 chars (~318px / 580px)

Description Length86 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (22/26) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

5 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

F28/100
Bot Access
20/25
Machine Read.
2/25
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
def. lists
Text ratio:2%
Words:123
Token eff.:Too Short
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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
46/100
6
Passed
5
Critical
1
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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.
4 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.
4/100
F
381 mg
CO₂e / view
3.0 MB
Page Weight
30%
Cleaner Than
New Visitor
436 mg
vs
Returning (cached)
218 mg
Annual (10K/mo)
45.7 kg
Emission Segments
Data Center
85 mg
Network
92 mg
Device
205 mg
Resource Breakdown
JavaScript
75.0 KB
Images
1.1 MB
CSS
1.8 MB
HTML
54.4 KB
Other
1.0 KB
Green Hosting Not Verified
Tencent Cloud
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

60d

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

23.04.2026

Valid Until

21.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.iopen.com.cniopen.com.cn

SHA-256 Fingerprint

64:7D:83:37:29:B8:BE:3D:65:BD:02:A0:33:BC:21:D7:1A:2F:6E:A4...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟣 Private(private)
connection
keep-alive
content-type
text/html; charset=utf-8
date
Fri, 22 May 2026 07:48:25 GMT
server
Lego Server
strict-transport-security
max-age=15724800; includeSubDomains
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mxw.mxhichina.com
mxn.mxhichina.com

Domain Information

open.com.cn

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.
D
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.
Viewport
width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no
5 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
52/100
Readability
/30
10/30

12px · LH 2.40

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

1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Helvetica Neue

Body Font

Helvetica Neue

Sans12px

Contrast Ratio

1:1

4 issues

Reading Comfort

~61 CPL

Optimal (45–75)
12px
p

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

⚠️ Wide line spacing (2.40). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~61 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

7 unique colors
13.68:1 AAA Light
#ffffff
Background· 35.800000000000004%
#2a2e32
Secondary· 9.8%
#faefde
Primary· 36.1%
#4984dd
Accent· 4.7%

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

10 Resources

6
Scripts
4
Styles
1
Async
0
Defer

Top Script Sources

local(3)hmcdn.baidu.com(1)hm.baidu.com(1)fedcdn.open.com.cn(1)

Website Identity

open.com.cn

Location detected: 🇨🇳 Chinavia tld
zh-cn

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Last analyzed: 22 May 2026 at 07:49

Historical Analysis & Change Tracking