iv.cn

https://iv.cn· First analyzed 28 Apr 2026· Updated 28 Apr 2026

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iv.cn

Mobile

Sponsored

Hosting Provider

CHINANET Sichuan province network

IP Address

61.139.126.146

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Chengdu, China

ASN

AS4134

Organization

CHINANET Sichuan province network

Server

OpenResty

Nameservers

tiger.dnspod.net.selena.dnspod.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.3 s10%

Speed Index

3.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

6.7 MB

74 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.4.3

cms

Huemanv3.7.24

by nikeo

View Theme

Technology Stack

18 Technologies Detected

Plugins

Instagram Feed Blossomthemes Email Newsletter Blossomthemes Toolkit

Contact Form 7

Nimble Builder Wheel Of Life Recent Posts Widget With Thumbnails Wp Image Zoooom Wp Helpers

Libraries

Frameworks

UI Components

CSS Frameworks

Icon Libraries

Web Servers

Security

SEO Analysis

C64/100

Meta Tags5/15

Content8/12

Headings3/8

Technical20/25

E-E-A-T5/7

Images3/7

Links2/5

URL5/5

Social4/5

Freshness2/4

Mobile4/4

Indexability3/3

iv.cniv.cn

iv智图

iv智图致力于为家长提供高质量的学习资源，帮助他们更好地引导孩子成长。

Title Length4 chars

Recommended: 50-60 chars (~22px / 580px)

Description Length35 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (38/40) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

14/100

Poor

4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

7/25

Citation

12/25

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

nav

Text ratio:2%

Words:462

Token eff.:Optimal

Sections/1K:34.6

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

81/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

Semantic Structure

20/20

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

13/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

5/15

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

2 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.

25/100

851 mg

CO₂e / view

6.7 MB

Page Weight

Cleaner Than

New Visitor

973 mg

Returning (cached)

486 mg

Annual (10K/mo)

102.1 kg

Emission Segments

Data Center

190 mg

Network

204 mg

Device

457 mg

Resource Breakdown

JavaScript

1.1 MB

Images

5.2 MB

CSS

84.7 KB

Fonts

295.1 KB

HTML

23.4 KB

Other

322 B

Green Hosting Not Verified

CHINANET Sichuan province network

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (3)

img.iv.cniv.cnwww.iv.cn

SHA-256 Fingerprint

41:51:B8:09:29:4A:97:16:F4:D6:AC:48:87:99:2A:BE:A5:7F:81:17...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 28 Apr 2026 01:08:36 GMT

link

<https://www.iv.cn/wp-json/>; rel="https://api.w.org/"

server

openresty

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

iv.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.

80/100

Mobile Friendly7 breakpoints

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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Titillium

WCAG Partial

61/100

Readability

/30

17/30

15px · LH 1.50

Hierarchy

/20

15/20

2.8x ratio

WCAG

/25

18/25

1.92:1 min contrast

Performance

/25

11/25

1 font · 8 req

Heading Font

Titillium

Sans42px

Body Font

Titillium

Sans15px

Contrast Ratio

1.92:1

24 issues

Reading Comfort

~42 CPL

Narrow lines

42px

34px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.9:1).

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)

Color Palette

9 unique colors

Light

#ebecec

Background· 19.1%

#16cfc1

Primary· 24.099999999999998%

#6c907d

Secondary· 10.7%

#9cdacd

Secondary· 8.6%

#a1c3ad

Secondary· 8.3%

#a424b8

Accent· 8%

#56bcc3

Secondary· 3.6%

#eaedca

Secondary· 0.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

iv.cn(18)hm.baidu.com(1)lf1-cdn-tos.bytegoofy.com(1)

Website Identity

iv智图

Organization

iv智图致力于为家长提供高质量的学习资源，帮助他们更好地引导孩子成长。

www.iv.cn/

Location detected: 🇨🇳 Chinavia tld

zh-CN

Sponsored

Last analyzed: 28 Apr 2026 at 01:09

Historical Analysis & Change Tracking