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caster.hk

https://caster.hk· First analyzed 20 May 2026· Updated 20 May 2026
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caster.hk
Desktop screenshot of caster.hk
Mobile screenshot of caster.hk
Mobile

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Hosting Provider

Solustack Limited

IP Address

206.119.179.184

Site Location

🇭🇰 Hong Kongvia tld

Server Location

🇺🇸 Los Angeles, United States

ASN

AS133199

Organization

Solustack Limited

Server

Nginx

Nameservers

ns5.myhostadmin.net.ns6.myhostadmin.net.ns1.myhostadmin.net.ns4.myhostadmin.net.+2 more

Performance

73

Core Web Vitals

Weight

First Contentful Paint
11.7 s10%
Speed Index
15.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
86 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Solustack Limited

Technology Stack

6 Technologies Detected

Libraries

2
jQuery
AOS

UI Components

1
Swiper

Other

1
AOS (Animate On Scroll)

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

D48/100
12
10
1
Meta Tags5/15
Content7/12
Headings6/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
C
caster.hkcaster.hk

福建施可瑞医疗科技股份有限公司-脚轮

施可瑞医疗科技股份有限公司提供：中控轮、医疗万向轮、医疗脚轮、脚轮厂、施可瑞轮子、静音轮等。

Title Length18 chars

Recommended: 50-60 chars (~111px / 580px)

Description Length46 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (10/14) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

272 URLs

robots.txt

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.

Sponsored

AI & LLM Readiness

F27/100
Bot Access
20/25
Machine Read.
2/25
Schema Data
0/25
Citation
5/25

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:3%
Words:141
Token eff.:Too Short
Sections/1K:177.3

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.4w
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.
C
67/100
9
Passed
6
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
9/15
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.
29/100
C
208 mg
CO₂e / view
1.6 MB
Page Weight
60%
Cleaner Than
New Visitor
238 mg
vs
Returning (cached)
119 mg
Annual (10K/mo)
25.0 kg
Emission Segments
Data Center
47 mg
Network
50 mg
Device
112 mg
Resource Breakdown
Images
629.2 KB
CSS
1.0 MB
HTML
12.0 KB
Green Hosting Not Verified
Solustack Limited
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.05.2026

Valid Until

18.08.2026

Subject Alternative Names (2)

caster.hkwww.caster.hk

SHA-256 Fingerprint

C0:BC:A4:88:1D:E0:7F:7B:EE:DC:4C:0F:26:E2:2D:E7:C3:7E:FF:21...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Wed, 20 May 2026 11:48:44 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
pragma
no-cache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

mail.caster.hk

Domain Information

caster.hk

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
57/100
Mobile Friendly13 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,user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Arial + 微软雅黑

WCAG Partial
57/100
Readability
/30
18/30

16px · LH 1.95

Hierarchy
/20
9/20

1.75x ratio

WCAG
/25
15/25

1.26:1 min contrast

Performance
/25
15/25

System fonts

Heading Font

Arial

Sans28px

Body Font

微软雅黑

Sans16px

Contrast Ratio

1.26:1

1 issue

Reading Comfort

Dual Sans-Serif

left aligned
28px
h1
84px
h2
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Wide line spacing (1.95). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.3:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

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

Color Palette

11 unique colors
7.33:1 AAA Dark
#5b5356
Other· 27.9%
#fdfdfd
Text· 6.7%
#483730
Secondary· 12.5%
#e95313
Primary· 9.4%
#292123
Secondary· 4.1%
#a26b53
Secondary· 0.7%

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

19 Resources

14
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

onemin-com.oss-cn-hangzhou.aliyuncs.com(6)hm.baidu.com(3)goutong.baidu.com(2)aff-im.cdn.bcebos.com(2)jj.sofsxz.com(1)

Website Identity

caster.hk

Location detected: 🇭🇰 Hong Kongvia tld
en

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Last analyzed: 20 May 2026 at 11:49

Historical Analysis & Change Tracking