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eslfast.com

https://eslfast.com· First analyzed 06 May 2026· Updated 06 May 2026
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eslfast.com
Desktop screenshot of eslfast.com
Mobile screenshot of eslfast.com
Mobile

Sponsored

Hosting Provider

GCL-ANYCAST

IP Address

92.38.146.100

Site Location

🇱🇺 Luxembourgvia ip

Server Location

🇱🇺 Luxembourg, Luxembourg

ASN

AS199524

Organization

GCL-ANYCAST

Server

Nginx

Nameservers

ns1.s2051.sureserver.com.ns2.s2051.sureserver.com.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
566 KB
35 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
GCL-ANYCAST

Technology Stack

14 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

2
Font AwesomeMaterial Icons

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

Fonts

1
Google Fonts

Payments

1
Square

Web Servers

1
Nginx

SEO Analysis

B77/100
20
7
0
Meta Tags15/15
Content10/12
Headings6/8
Technical21/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
E
eslfast.comeslfast.com

ESL Fast - English Teaching and Learning Resources

Improve your English with 2500+ real ESL conversations, 3000+ engaging stories. Learn speaking, writing with ESL Robot - a smart AI tutor. It's free!

Title Length50 chars

Recommended: 50-60 chars (~301px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    13,123 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    12/100
    Poor
    3 14

    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.
    3/25
    Schema Data
    3/25
    Citation
    15/25

    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:11%
    Words:8,534
    Token eff.:Excessive
    Sections/1K:1.1

    Structured Data

    1 JSON-LD
    Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary45w
    Descriptive Headingsavg 3.8w
    Canonical URL
    Open Graph3/3
    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
    62/100
    9
    Passed
    6
    Critical
    3
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    3/15
    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.
    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.
    52/100
    A
    70 mg
    CO₂e / view
    565.8 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    80 mg
    vs
    Returning (cached)
    40 mg
    Annual (10K/mo)
    8.4 kg
    Emission Segments
    Data Center
    16 mg
    Network
    17 mg
    Device
    38 mg
    Resource Breakdown
    JavaScript
    378.1 KB
    Images
    36.8 KB
    CSS
    137.8 KB
    Fonts
    6.2 KB
    HTML
    6.9 KB
    Green Hosting Not Verified
    GCL-ANYCAST
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    65d

    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

    11.04.2026

    Valid Until

    10.07.2026

    Subject Alternative Names (2)

    *.eslfast.comeslfast.com

    SHA-256 Fingerprint

    50:8D:98:CE:1E:3D:DD:0F:F4:A9:3B:F3:0A:68:87:6A:E8:2A:BE:65...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    content-encoding
    📦 Gzip(gzip)
    content-length
    6743
    content-type
    text/html
    date
    Wed, 06 May 2026 08:44:23 GMT
    etag
    "9822-64eabdd589641-gzip"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (1)

    mail.eslfast.com

    Domain Information

    eslfast.com

    Domain Age
    19y 3m

    Created

    09.02.2007

    Expires

    09.02.2028

    Last Updated

    26.01.2024

    Registrar

    eNom, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    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.
    C
    69/100
    Mobile Friendly12 breakpoints
    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

    Open Sans

    WCAG Partial
    56/100
    Readability
    /30
    11/30

    12px · LH 1.33

    Hierarchy
    /20
    13/20

    1.46x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1.31:1 min contrast

    Performance
    /25
    16/25

    System fonts

    Heading Font

    Open Sans

    Sans18px

    Body Font

    Open Sans

    Sans12px

    Contrast Ratio

    1.31:1

    9 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    18px
    h1
    48px
    h2
    23px
    h3
    31px
    h4
    12px
    p
    Perfect Fifth
    Scale

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

    ⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.3:1).

    ✅ 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.

    GGoogle FontsFlesch 36

    Color Palette

    8 unique colors
    5.74:1 AA Light
    #ffffff
    Background· 21.400000000000002%
    #666666
    Other· 19.1%
    #1d214e
    Primary· 44.900000000000006%
    #303251
    Secondary· 4.8%
    #eeeff1
    Secondary· 4.3%
    #336bbc
    Accent· 2.6%
    #555a73
    Secondary· 1.4%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseMedia.netSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    15 Resources

    11
    Scripts
    4
    Styles
    4
    Async
    0
    Defer

    Top Script Sources

    eslfast.com(4)pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)local(2)googletagmanager.com(1)

    Website Identity

    ESL Fast - A huge free online English learning resource

    ESL Fast - A huge free online English learning resource

    Organization
    www.eslfast.com/
    19 years old
    Location detected: 🇱🇺 Luxembourgvia ip
    eNom, LLCen

    Social Profiles

    FacebookX (Twitter)

    Sponsored

    Last analyzed: 06 May 2026 at 08:44

    Historical Analysis & Change Tracking