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sunlab.top

https://sunlab.top· First analyzed 14 May 2026· Updated 14 May 2026
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sunlab.top
Desktop screenshot of sunlab.top
Mobile screenshot of sunlab.top
Mobile

Sponsored

Hosting Provider

Oracle Cloud
oracle.com/cloud

IP Address

168.138.218.125

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS31898

Organization

Oracle Cloud Infrastructure (ap-tokyo-1)

Server

Nginx

Nameservers

dj.dnspod.net.pub.dnspod.net.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1010 KB
67 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Oracle Cloud

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

2
Font AwesomeMaterial Icons

Libraries

1
jQuery

Fonts

1
Google Fonts

Web Servers

1
Nginx

SEO Analysis

C61/100
18
8
0
Meta Tags7/15
Content6/12
Headings5/8
Technical18/25
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sunlab.topsunlab.top

天津大学智能电子实验室

TJU SUN LAB. Based on [*folio](https://github.com/bogoli/-folio) design.

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length73 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    29 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    F34/100
    Bot Access
    20/25
    Machine Read.
    5/25
    Schema Data
    0/25
    Citation
    9/25

    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
    navheader/footer
    Text ratio:7%
    Words:68
    Token eff.:Too Short
    Sections/1K:60
    Depth:2/5

    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 (10)
    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.
    A
    80/100
    12
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    46/100
    B
    125 mg
    CO₂e / view
    1010.0 KB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    143 mg
    vs
    Returning (cached)
    71 mg
    Annual (10K/mo)
    15.0 kg
    Emission Segments
    Data Center
    28 mg
    Network
    30 mg
    Device
    67 mg
    Resource Breakdown
    JavaScript
    102.2 KB
    Images
    27.3 KB
    CSS
    867.4 KB
    Fonts
    2.6 KB
    HTML
    10.5 KB
    Green Hosting Not Verified
    Oracle Cloud
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    75d

    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

    30.04.2026

    Valid Until

    29.07.2026

    Subject Alternative Names (1)

    sunlab.top

    SHA-256 Fingerprint

    B1:E8:63:D0:FF:0C:E5:03:75:83:B2:40:8D:FD:30:01:5B:04:BE:E4...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html
    date
    Thu, 14 May 2026 23:04:08 GMT
    etag
    W/"66bb08b8-7478"
    last-modified
    Tue, 13 Aug 2024 07:18:16 GMT
    server
    nginx
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    sunlab.top

    Domain Age
    3y 2m

    Created

    15.02.2023

    Expires

    15.02.2033

    Last Updated

    24.02.2023

    Registrar

    阿里云计算有限公司

    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.
    B
    70/100
    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=device-width, initial-scale=1, shrink-to-fit=no
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG AA
    84/100
    Readability
    /30
    27/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    2.5x ratio

    WCAG
    /25
    22/25

    5.83:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    -apple-system

    Sans40px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    5.83:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~39 CPL

    Narrow lines
    40px
    h1
    28px
    h3
    16px
    p

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

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

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.8:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

    GGoogle Fonts

    Color Palette

    9 unique colors
    7.75:1 AAA Light
    #ffffff
    Background· 69.4%
    #59514d
    Other· 3.6%
    #dcdad2
    Primary· 7.2%

    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

    28 Resources

    20
    Scripts
    8
    Styles
    2
    Async
    10
    Defer

    Top Script Sources

    local(10)cdn.jsdelivr.net(6)embed.altmetric.com(1)d1bxh8uas1mnw7.cloudfront.net(1)badge.dimensions.ai(1)

    Website Identity

    sunlab.top

    3 years old
    Location detected: 🇯🇵 Japanvia ip
    阿里云计算有限公司en

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 14 May 2026 at 23:04

    Historical Analysis & Change Tracking