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w3schools.in

https://w3schools.in· First analyzed 15 May 2026· Updated 15 May 2026
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w3schools.in
Desktop screenshot of w3schools.in
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Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.21.88.74

Site Location

🇮🇳 Indiavia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

damon.ns.cloudflare.com.brenda.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
244 ms10%
Speed Index
317 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
113 KB
35 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Advertising

2
Google AdsGoogle AdSense

Frameworks

1
Vue.js

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

C66/100
17
8
0
Meta Tags13/15
Content10/12
Headings8/8
Technical17/25
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
W
w3schools.inw3schools.in

W3Schools Tutorials | Learn HTML, CSS, JavaScript, and More

W3Schools provides online tutorials to help you learn programming, software, and web development. Master HTML, CSS, JavaScript, PHP, Python, C++, Java, and m...

Description truncated.
Title Length59 chars

Recommended: 50-60 chars (~356px / 580px)

Description Length213 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    5 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

    D41/100
    Bot Access
    20/25
    Machine Read.
    12/25
    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
    code blocksnavheader/footer
    Text ratio:8%
    Words:1,470
    Token eff.:Optimal
    Sections/1K:30.6
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary25w
    Descriptive Headingsavg 2.8w
    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.
    B
    78/100
    10
    Passed
    4
    Critical
    0
    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
    7/15
    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.
    1 recommendation
    • •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.
    77/100
    A+
    11 mg
    CO₂e / view
    113.3 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
    <0.001 g
    Network
    3 mg
    Device
    8 mg
    Resource Breakdown
    Images
    343 B
    CSS
    88.7 KB
    HTML
    21.3 KB
    Other
    3.1 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    49d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    04.04.2026

    Valid Until

    03.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    w3schools.in*.w3schools.in

    SHA-256 Fingerprint

    27:1F:94:C5:2E:45:15:86:FE:85:55:65:66:6B:95:F5:E7:BA:35:01...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(private, max-age=0, must-revalidate, no-cache, no-store)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9fbf79940f6d008a-CDG
    content-encoding
    zstd
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    30

    SPF
    DKIM
    DMARC

    Domain Information

    w3schools.in

    Domain Age
    16y 9m

    Created

    11.08.2009

    Expires

    11.08.2029

    Last Updated

    31.05.2025

    Registrar

    GoDaddy

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Privacy policy page linked
    Legitimate interest basis 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.
    B
    71/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Inter

    WCAG Partial
    65/100
    Readability
    /30
    18/30

    16px · LH 1.60

    Hierarchy
    /20
    15/20

    1.69x ratio · ✓ H1→H6

    WCAG
    /25
    12/25

    2.11:1 min contrast

    Performance
    /25
    20/25

    1 font · 3 req

    Heading Font

    Inter

    Sans26px

    Body Font

    Inter

    Sans16px

    Contrast Ratio

    2.11:1

    32 issues

    Reading Comfort

    ~41 CPL

    Narrow lines
    26px
    h1
    23px
    h2
    21px
    h3
    18px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 32 elements below WCAG AA threshold (min 2.1:1).

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

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    ✅ Lean font stack: 1 font families keeps load times fast.

    Buy on MyFonts

    Color Palette

    6 unique colors
    7.9:1 AAA Light
    #ffffff
    Background· 35.3%
    #535059
    Text· 7.9%
    #303942
    Secondary· 43.4%
    #44819a
    Secondary· 5.2%
    #d7ebe7
    Primary· 2.7%

    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

    Ad Networks

    Google AdSenseGoogle Ad ManagerEzoicPrebid.js

    Sponsored

    Scripts & Styles

    20 Resources

    19
    Scripts
    1
    Styles
    18
    Async
    0
    Defer

    Top Script Sources

    local(15)privacy.gatekeeperconsent.com(1)googletagmanager.com(1)go.ezodn.com(1)the.gatekeeperconsent.com(1)

    Website Identity

    w3schools.in

    16 years old
    Location detected: 🇮🇳 Indiavia tld
    GoDaddyen-US

    Sponsored

    Last analyzed: 15 May 2026 at 04:42

    Historical Analysis & Change Tracking