slanrf.com

https://slanrf.com· First analyzed 01 May 2026· Updated 01 May 2026

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slanrf.com

Mobile

Sponsored

Hosting Provider

Chengdu west dimension digital technology Co., LTD

IP Address

211.149.151.166

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Haidian, China

ASN

AS38283

Organization

Chengdu west dimension digital technology Co., LTD

Server

Microsoft IIS

Nameservers

ns4.myhostadmin.net.ns6.myhostadmin.net.ns5.myhostadmin.net.ns3.myhostadmin.net.+2 more

Performance

Core Web Vitals

Weight

First Contentful Paint

2.9 s10%

Speed Index

3.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

17 MB

36 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Chengdu west dimension digital technology Co., LTD

Technology Stack

6 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Web Servers

Frameworks

SEO Analysis

F34/100

Meta Tags4/15

Content8/12

Headings3/8

Technical4/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

slanrf.comslanrf.com

首页-成都感智索蓝科技有限公司

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars (~93px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (16/27) — critical for accessibility and SEO

17 issues found

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Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F23/100

Bot Access

20/25

Machine Read.

2/25

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

nav

Text ratio:7%

Words:127

Token eff.:Too Short

Sections/1K:7.9

Depth:1/5

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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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.

49/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

15/15

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

7/15

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...

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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.

17/100

2.16 g

CO₂e / view

17.0 MB

Page Weight

Cleaner Than

New Visitor

2.47 g

Returning (cached)

1.23 g

Annual (10K/mo)

258.9 kg

Emission Segments

Data Center

482 mg

Network

518 mg

Device

1.16 g

Resource Breakdown

JavaScript

54.4 KB

Images

16.4 MB

CSS

544.8 KB

HTML

8.5 KB

Green Hosting Not Verified

Chengdu west dimension digital technology Co., LTD

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

No SSL

No WAF

N/A

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-length

8357

content-type

text/html; charset=utf-8

date

Fri, 01 May 2026 13:30:42 GMT

server

Microsoft-IIS/8.0

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

slanrf.com

Domain Age

16y 2m

Created

03.03.2010

Expires

03.03.2028

Last Updated

26.02.2026

Registrar

Chengdu West Dimension Digital Technology 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.

39/100

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

microsoft yahei

WCAG Partial

58/100

Readability

/30

24/30

24px · LH 1.50

Hierarchy

/20

6/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

microsoft yahei

Sans

Body Font

microsoft yahei

Sans24px

Contrast Ratio

1:1

13 issues

Reading Comfort

Single Font Family

center aligned

48px

24px

✅ Excellent readability: 24px body text is ideal for all devices.

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

⚠️ Partial contrast: 13 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.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

9 unique colors

Light

#ffffff

Text· 10%

#0e1a2f

Primary· 27.300000000000004%

#193260

Primary· 15.8%

#20437c

Accent· 15.399999999999999%

#3b76aa

Primary· 7.3%

#7ba0bc

Secondary· 6.2%

#d4e9f0

Secondary· 2.5%

#4c4a73

Secondary· 2.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(3)

Website Identity

slanrf.com

16 years old

Location detected: 🇨🇳 Chinavia ip

Chengdu West Dimension Digital Technology Co., Ltd.

Sponsored

Last analyzed: 01 May 2026 at 13:31

Historical Analysis & Change Tracking