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colab.ws

https://colab.ws· First analyzed 15 May 2026· Updated 15 May 2026
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colab.ws
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Mobile

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Hosting Provider

Ddos-guard LTD

IP Address

95.129.237.32

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Rostov-on-Don, Russia

ASN

AS57724

Organization

Ddos-guard LTD

Server

ddos-guard

Nameservers

ns1.reg.ru.ns2.reg.ru.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
498 ms10%
Speed Index
647 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.1 MB
74 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Alpine.js
Styling
Tailwind CSS
Infrastructure
Hosting
Ddos-guard LTD

Technology Stack

5 Technologies Detected

Frameworks

1
Alpine.js

Other

1
Chart.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

SEO Analysis

D59/100
17
10
0
Meta Tags8/15
Content11/12
Headings7/8
Technical15/25
E-E-A-T0/7
Images3/7
Links4/5
URL5/5
Social2/5
Freshness0/4
Mobile1/4
Indexability3/3
C
colab.wscolab.ws

CoLab

CoLab — это платформа, созданная с целью объединить студентов, учёных, лаборатории и R&D компании и предоставить им удобную IT-платформу для коммуникации и с...

Description truncated.
Title Length5 chars

Recommended: 50-60 chars (~31px / 580px)

Description Length171 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    27,355 URLs

    robots.txt

    2 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    5/100
    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

    F39/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    8/25

    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:6%
    Words:1,553
    Token eff.:Optimal
    Sections/1K:2.6
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary72w
    Descriptive Headingsavg 1.2w
    Canonical URL
    Open Graph1/3
    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.
    C
    69/100
    9
    Passed
    3
    Critical
    2
    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
    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
    7/15
    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...
    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.
    39/100
    B
    141 mg
    CO₂e / view
    1.1 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    161 mg
    vs
    Returning (cached)
    81 mg
    Annual (10K/mo)
    16.9 kg
    Emission Segments
    Data Center
    32 mg
    Network
    34 mg
    Device
    76 mg
    Resource Breakdown
    JavaScript
    821.4 KB
    Images
    45.9 KB
    CSS
    236.0 KB
    Fonts
    965 B
    HTML
    35.4 KB
    Green Hosting Not Verified
    Ddos-guard LTD
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    88d

    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

    13.05.2026

    Valid Until

    11.08.2026

    Subject Alternative Names (1)

    colab.ws

    SHA-256 Fingerprint

    49:92:30:52:AF:C4:37:BC:D7:ED:9D:34:96:33:48:3F:B1:1F:E4:4B...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache, no-store, must-revalidate)
    content-length
    898
    content-type
    text/html; charset=UTF-8
    date
    Fri, 15 May 2026 11:10:52 GMT
    server
    ddos-guard
    Good Warning Issue

    Email Infrastructure

    Yandex Mail

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mx.yandex.net

    Domain Information

    colab.ws

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer mentioned

    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.
    C
    64/100
    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, maximum-scale=1
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG Partial
    74/100
    Readability
    /30
    22/30

    24px · LH 1.33

    Hierarchy
    /20
    17/20

    2.5x ratio

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    18/25

    System fonts

    Heading Font

    -apple-system

    Sans60px

    Body Font

    -apple-system

    Sans24px

    Contrast Ratio

    1:1

    4 issues

    Reading Comfort

    Single Font Family

    left aligned
    60px
    h1
    36px
    h2
    24px
    h4
    24px
    p

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

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

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

    GGoogle FontsFlesch 19

    Color Palette

    6 unique colors
    Light
    #eff6ff
    Primary· 87.69999999999999%
    #e1e8f0
    Secondary· 2.9%
    #2e3b50
    Secondary· 2.6%
    #aeb7a4
    Secondary· 2.6%
    #4986e1
    Accent· 2.2%
    #b5d36a
    Accent· 2.2%

    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

    14 Resources

    9
    Scripts
    5
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    colab.ws(8)mc.yandex.ru(1)

    Website Identity

    colab.ws

    info@colab.ws
    Location detected: 🇷🇺 Russiavia ip
    📧 Yandex Mailru

    Social Profiles

    Telegram

    Sponsored

    Last analyzed: 15 May 2026 at 11:11

    Historical Analysis & Change Tracking