StackOptic
Back to Search
jdzj.com favicon

jdzj.com

https://jdzj.com· First analyzed 01 May 2026· Updated 01 May 2026
Export
jdzj.com
Desktop screenshot of jdzj.com
Mobile screenshot of jdzj.com
Mobile

Sponsored

Hosting Provider

China Unicom Zhejiang Province Network

IP Address

101.71.251.236

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Hangzhou, China

ASN

AS4837

Server

Microsoft IIS

Nameservers

f1g1ns1.dnspod.net.f1g1ns2.dnspod.net.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
12.0 s10%
Speed Index
15.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
95 KB
250 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
China Unicom Zhejiang Province Network

Technology Stack

5 Technologies Detected

Libraries

2
jQueryv1.12.4
Swiper

Other

1
D3.js

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Microsoft IISv10.0

SEO Analysis

D55/100
14
10
0
Meta Tags5/15
Content11/12
Headings6/8
Technical14/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
J
jdzj.comjdzj.com

机电之家-机电行业b2b平台-让机电企业在行业中脱颖而出

机电之家是机电行业网上机电市场,机电企业信息化专家,机电之家网提供：机电商机，机电五金展会，机电资料等

Title Length28 chars

Recommended: 50-60 chars (~173px / 580px)

Description Length51 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 rules

    Local SEO

    Local Search Readiness

    9/100
    Poor
    2 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

    F26/100
    Bot Access
    20/25
    Machine Read.
    1/25
    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:3,313
    Token eff.:Poor Structure

    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 (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.
    F
    39/100
    4
    Passed
    7
    Critical
    1
    Warnings
    Images & Alt Text
    5/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    3/20
    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
    5/15
    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.
    5 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.
    51/100
    A+
    12 mg
    CO₂e / view
    95.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    13 mg
    vs
    Returning (cached)
    7 mg
    Annual (10K/mo)
    1.4 kg
    Emission Segments
    Data Center
    3 mg
    Network
    3 mg
    Device
    6 mg
    Resource Breakdown
    Images
    28.8 KB
    HTML
    66.0 KB
    Other
    300 B
    Green Hosting Not Verified
    China Unicom Zhejiang Province Network
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    163d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Unizeto Technologies S.A.

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    12.09.2025

    Valid Until

    12.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.jdzj.comjdzj.com

    SHA-256 Fingerprint

    A7:DA:5F:15:EA:EB:4F:62:79:F9:4E:12:57:65:84:5D:C4:45:EE:1C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    cache-control
    🔵 1 Days(public, max-age=86400, s-maxage=3600)
    content-encoding
    📦 Gzip(gzip)
    content-language
    zh-CN
    content-length
    67234
    content-type
    text/html
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    mail.jdzj.com

    Domain Information

    jdzj.com

    Domain Age
    21y 4m

    Created

    22.12.2004

    Expires

    22.12.2029

    Last Updated

    17.03.2026

    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

    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
    44/100
    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=1150, initial-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    microsoft yahei

    WCAG Partial
    54/100
    Readability
    /30
    14/30

    14px · LH 1.79

    Hierarchy
    /20
    11/20

    1x ratio

    WCAG
    /25
    15/25

    1.61:1 min contrast

    Performance
    /25
    14/25

    System fonts

    Heading Font

    microsoft yahei

    Sans14px

    Body Font

    microsoft yahei

    Sans14px

    Contrast Ratio

    1.61:1

    7 issues

    Reading Comfort

    ~136 CPL

    Too wide
    14px
    h1
    20px
    h2
    16px
    h3
    16px
    h4
    14px
    p
    Minor Second
    Scale

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

    ❌ Very long lines: ~136 chars/line causes eye strain. Add max-width constraint.

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.6:1).

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

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

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

    Buy on MyFontsFlesch 67

    Color Palette

    10 unique colors
    4.78:1 AA Light
    #ffffff
    Background· 48.1%
    #7f6e75
    Other· 4.4%
    #0149bb
    Primary· 9.1%
    #011772
    Accent· 7.4%
    #dcc3b3
    Secondary· 6.6%
    #e3e7ec
    Secondary· 6.6%
    #4d9ad1
    Accent· 6.3%
    #6bc8ea
    Accent· 4.3%

    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

    Sponsored

    Scripts & Styles

    29 Resources

    19
    Scripts
    10
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    img.jdzj.com(15)file.jdzj.com(4)

    Website Identity

    jdzj.com

    21 years old
    Location detected: 🇨🇳 Chinavia ip
    Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

    Sponsored

    Last analyzed: 01 May 2026 at 11:34

    Historical Analysis & Change Tracking