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yd-purification.com

https://yd-purification.com· First analyzed 02 Jun 2026· Updated 02 Jun 2026
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yd-purification.com
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Mobile

Sponsored

Hosting Provider

cloud.tencent.com

IP Address

43.130.10.155

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Santa Clara, United States

ASN

AS132203

Organization

Tencent Cloud Computing

Server

Custom-Server

CDN

Cloudflare

WAF

Cloudflare

Nameservers

laura.ns.cloudflare.com.vick.ns.cloudflare.com.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
4.4 s10%
Speed Index
5.7 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
54 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Tencent Cloud
CDN
Cloudflare

Technology Stack

11 Technologies Detected

CSS Frameworks

1

Icon Libraries

1

Tag Managers

1

Customer Support

1

SEO Analysis

B79/100
23
5
0
Meta Tags13/15
Content12/12
Headings8/8
Technical19/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
Y
yd-purification.comyd-purification.com

Clean Room Doors And Windows | Farclean Door Factory

Farclean offers durable clean room doors and windows designed for optimal contamination control. Our high-quality products are ideal for cleanrooms in indust...

Description truncated.
Title Length52 chars

Recommended: 50-60 chars (~322px / 580px)

Description Length229 chars

Recommended: 120-160 chars

Issues (0)

    Crawlability

    Sitemap

    Type: standard

    302 URLs

    robots.txt

    6 rules

    Local SEO

    Local Search Readiness

    12/100
    Poor
    4 13 1

    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
    6/25
    Citation
    13/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:13%
    Words:2,619
    Token eff.:Optimal
    Sections/1K:1.9

    Structured Data

    2 JSON-LD
    Organization×1.1WebSiteSearchAction

    Citation Readiness

    Opening Summary11w
    Descriptive Headingsavg 6.3w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...

    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
    60/100
    8
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    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
    0/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • Accessibility recommendation preview...

    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.
    36/100
    C
    196 mg
    CO₂e / view
    1.5 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    224 mg
    vs
    Returning (cached)
    112 mg
    Annual (10K/mo)
    23.5 kg
    Emission Segments
    Data Center
    44 mg
    Network
    47 mg
    Device
    105 mg
    Resource Breakdown
    JavaScript
    109.8 KB
    Images
    216.4 KB
    CSS
    1.2 MB
    HTML
    20.5 KB
    Green Hosting Not Verified
    Tencent Cloud
    5 recommendations
    • Carbon footprint recommendation preview...
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    32d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    ZeroSSL GmbH

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    05.04.2026

    Valid Until

    04.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.yd-purification.com

    SHA-256 Fingerprint

    18:E4:FE:BB:A2:A1:99:78:36:5E:7B:7A:71:8B:15:C5:65:99:09:A3...

    Top Recommendations

    Security recommendation preview

    HTTP Headers

    Developer Console

    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    frame-ancestors 'none'
    content-type
    text/html; charset=utf-8
    date
    Tue, 02 Jun 2026 11:12:19 GMT
    referrer-policy
    origin-when-cross-origin
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    yd-purification.com

    Domain Age
    2y 4m

    Created

    01.02.2024

    Expires

    01.02.2027

    Last Updated

    15.05.2024

    Registrar

    Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked

    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
    51/100
    Mobile Friendly
    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, minimum-scale=1, user-scalable=no , maximum-scale=5
    3 recommendations
    • Mobile compatibility recommendation preview...

    Typography & Readability

    Arial

    WCAG AAA
    65/100
    Readability
    /30
    13/30

    14px · LH 2.00

    Hierarchy
    /20
    9/20

    1.14x ratio · ✓ H1→H6

    WCAG
    /25
    21/25

    21:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Arial

    Sans16px

    Body Font

    Arial

    Sans14px

    Contrast Ratio

    21:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~41 CPL

    Narrow lines
    16px
    h1
    38px
    h2
    20px
    h3
    30px
    h4
    14px
    p
    Perfect Fifth
    Scale

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 21.0:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

    Color Palette

    12 unique colors
    Light
    #83969c
    Secondary· 28.799999999999997%
    #90a5ac
    Secondary· 14.5%
    #c3ccce
    Secondary· 7.8%
    #4a90c0
    Secondary· 6.9%
    #405d6d
    Secondary· 6.9%
    #6a828a
    Secondary· 6.7%
    #183644
    Primary· 5.6%
    #f3f6f7
    Secondary· 5.6%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    17 Resources

    11
    Scripts
    6
    Styles
    4
    Async
    9
    Defer

    Top Script Sources

    ce710bd2570d758f.cdn.hqsmartcloud.com(7)googletagmanager.com(2)hqcdn.hqsmartcloud.com(1)local(1)

    Website Identity

    yd-purification.com

    2 years old
    Location detected: 🇺🇸 United Statesvia ip
    Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)en

    Sponsored

    Last analyzed: 02 Jun 2026 at 11:12

    Historical Analysis & Change Tracking