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opensourcealternative.to

https://opensourcealternative.to· First analyzed 29 May 2026· Updated 29 May 2026
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opensourcealternative.to
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Mobile

Sponsored

Hosting Provider

Fly.io
fly.io

IP Address

66.241.125.173

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS40509

Organization

Fly.io, Inc

Server

Fly/b59e3505 (2026-05-27)

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
541 ms10%
Speed Index
703 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
481 KB
67 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Magento
Infrastructure
Platform
Fly.io

Technology Stack

11 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Plausible AnalyticsSentry

Advertising

2
Google AdsGoogle AdSense

Meta Frameworks

1
Remix

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Platforms

1
Fly.io

CDN

1
Cloudflare

SEO Analysis

C68/100
19
7
0
Meta Tags14/15
Content8/12
Headings8/8
Technical14/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
O
opensourcealternative.toopensourcealternative.to

Open Source Alternatives To Proprietary Software

The world's largest directory for open source software. Discover 500+ popular open source alternatives to proprietary software products. 100% free.

Title Length48 chars

Recommended: 50-60 chars (~296px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,062 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    8/100
    Poor
    3 12 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
    nav
    Text ratio:2%
    Words:294
    Token eff.:Too Short
    Sections/1K:102
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary17w
    Descriptive Headingsavg 1.2w
    Canonical URL
    Open Graph2/3
    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
    75/100
    11
    Passed
    2
    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
    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.
    44/100
    A
    60 mg
    CO₂e / view
    481.3 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    68 mg
    vs
    Returning (cached)
    34 mg
    Annual (10K/mo)
    7.1 kg
    Emission Segments
    Data Center
    13 mg
    Network
    14 mg
    Device
    32 mg
    Resource Breakdown
    JavaScript
    403.4 KB
    Images
    3.3 KB
    CSS
    7.4 KB
    Fonts
    768 B
    HTML
    48.4 KB
    Other
    18.1 KB
    Green Hosting Not Verified
    Fly.io
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    36d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    05.04.2026

    Valid Until

    04.07.2026

    Subject Alternative Names (1)

    opensourcealternative.to

    SHA-256 Fingerprint

    CF:FB:50:05:79:DB:C6:45:75:91:D8:B8:19:D2:97:65:57:A5:9F:F8...

    Top 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; charset=utf-8
    date
    Fri, 29 May 2026 15:31:39 GMT
    fly-request-id
    01KST5SHJPW62FD0QYWF93HE5Y-ewr
    server
    Fly/b59e3505 (2026-05-27)
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    opensourcealternative.to

    Domain Age
    4y 4m

    Created

    15.01.2022

    Expires

    15.01.2027

    Last Updated

    20.12.2025

    Registrar

    NAMECHEAP

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected

    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
    68/100
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Space Grotesk + Inter

    WCAG Partial
    76/100
    Readability
    /30
    22/30

    14px · LH 1.43

    Hierarchy
    /20
    17/20

    1.71x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    4.17:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 1 req

    Heading Font

    Space Grotesk

    Sans24px

    Body Font

    Inter

    Sans14px

    Contrast Ratio

    4.17:1

    1 issue

    Reading Comfort

    ~45 CPL

    Optimal (45–75)
    24px
    h1
    20px
    h2
    18px
    h3
    14px
    p

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

    ✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

    ✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.2:1).

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

    GGoogle FontsFlesch 0

    Color Palette

    4 unique colors
    2.99:1 Fail Light
    #ffffff
    Background· 93.5%
    #959597
    Other· 1.9%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google AnalyticsFree
    PlausibleSMB

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSense

    Sponsored

    Scripts & Styles

    7 Resources

    5
    Scripts
    2
    Styles
    2
    Async
    1
    Defer

    Top Script Sources

    pagead2.googlesyndication.com(2)plausible.io(1)googletagmanager.com(1)ep2.adtrafficquality.google(1)

    Website Identity

    opensourcealternative.to

    [email protected]
    4 years old
    Location detected: 🇫🇷 Francevia ip
    NAMECHEAPen

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 29 May 2026 at 15:31

    Historical Analysis & Change Tracking

    opensourcealternative.to Technology Stack - Built With Remix, Tailwind CSS, Google Fonts, Google Analytics, Google Analytics 4 | StackOptic | StackOptic