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Speed-Check VS s3-lambda

Compare Speed-Check VS s3-lambda and see what are their differences

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Contents:
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Speed-Check logo Speed-Check

Speed-Check is a free, privacy-first browser speed test measuring download, upload, ping, and jitter via M-Lab NDT7 — no signup, no tracking, no app required.

s3-lambda logo s3-lambda

Lambda functions over S3 objects: each, map, reduce, filter
  • Speed-Check Speed Test Web
    Speed Test Web //
    2026-05-18
  • Speed-Check Chrome Extension
    Chrome Extension //
    2026-05-18

Speed-Check is a free, open, and privacy-first internet speed test that measures your download speed, upload speed, ping, and jitter directly in your browser — no signup, no app install, and no tracking of personal data.

Unlike most mainstream speed tests, Speed-Check runs on the M-Lab NDT7 protocol (the same open measurement standard used by Google Search and independent researchers) combined with Cloudflare edge endpoints for global coverage. Results are typically within 2–5% of Ookla Speedtest, but without the heavy ads, account walls, or invasive analytics.

Key Features

  • ⚡ Full metrics by default — download, upload, ping, and jitter (no hidden upload like Fast.com)
  • 🔒 Privacy-first — no cookies, no personal data stored, GDPR-compliant
  • 🌍 Global server network — M-Lab + Cloudflare endpoints worldwide
  • 🧩 Free embeddable widget — add a speed test to any website in 3 sizes (no paid tier)
  • 🧪 Open methodology — protocol and code logic publicly documented
  • 📱 Apps & extensions — Progressive Web App (PWA), Chrome extension (Manifest V3), Firefox extension (140+)
  • 📊 Country rankings — broadband and mobile speeds for 200+ countries
  • 📚 Knowledge hub — in-depth guides on WiFi, VPN, gaming ping, streaming, and more

Who It's For

Privacy-conscious users, remote workers, gamers, streamers, webmasters, ISPs, journalists, and researchers who need accurate, transparent, and ad-light speed measurements.

No account. No payment. No compromises.

  • s3-lambda Landing page
    Landing page //
    2022-11-04

Speed-Check

Website
speed-check.net
Pricing URL
Official Speed-Check Pricing
$ Details
free
Platforms
MacOS Windows Google Chrome Firefox Safari Edge Brave Opera Linux iOS Android Chrome OS
Release Date
2025 August
Startup details
Country
Germany
Employees
1 - 9
Edit details

s3-lambda

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Edit details

Speed-Check features and specs

  • Measurement protocol
    M-Lab NDT7 (same protocol Google uses) + Cloudflare endpoints
  • Metrics measured
    Download, Upload, Ping, Jitter (all shown by default)
  • Account required
    No — fully anonymous, no signup
  • Privacy
    No personal data stored, no tracking cookies, GDPR-compliant
  • Pricing
    100% free, no premium tier
  • Embeddable widget
    Free, customizable (colors/theme), 3 sizes (compact, full, gauge)
  • Browser extensions
    Chrome (Manifest V3) + Firefox (140+)
  • PWA support
    Installable on desktop & mobile, offline fallback page

s3-lambda features and specs

  • Batch processing of S3 objects
    s3-lambda provides a straightforward way to perform batch operations on large numbers of S3 objects, enabling map, filter, and reduce-style processing over entire S3 buckets or prefixes without writing boilerplate code.
  • Familiar functional API
    The library uses a functional programming paradigm with operations like map, filter, and reduce, making it intuitive for JavaScript developers to process S3 objects using patterns they already know.
  • Built-in concurrency control
    s3-lambda handles parallel processing of S3 objects with configurable concurrency, allowing users to control how many operations run simultaneously and avoid overwhelming AWS resources or hitting rate limits.
  • Context-aware operations
    The library provides a context object within each operation that includes useful metadata about the current object being processed, simplifying access to S3 object properties during transformations.
  • Easy integration with Lambda
    Designed to work seamlessly within AWS Lambda functions, making it straightforward to set up event-driven, serverless pipelines for processing large volumes of S3 data without managing infrastructure.

Possible disadvantages of s3-lambda

  • Unmaintained project
    The repository appears to be no longer actively maintained, with limited recent commits and unresolved issues, which raises concerns about long-term reliability, security patches, and compatibility with newer AWS SDK versions.
  • Limited documentation
    The project's documentation is relatively sparse, lacking comprehensive examples, edge case handling guidance, and detailed API references, which can make it challenging for new users to adopt effectively.
  • AWS SDK version dependency
    The library depends on an older version of the AWS SDK for JavaScript, which may conflict with projects using the newer AWS SDK v3 and could miss out on performance improvements and features in updated SDKs.
  • Limited error handling flexibility
    The built-in error handling mechanisms are relatively basic, and handling partial failures or implementing sophisticated retry logic for individual object operations requires additional custom code from the developer.
  • Narrow scope of functionality
    The library is tightly focused on S3 object processing and does not integrate with other AWS services or provide utilities beyond basic map/filter/reduce operations, limiting its usefulness in more complex data pipeline scenarios.

Analysis of Speed-Check

Overall verdict

  • Speed-Check.net is a simple, no-frills internet speed testing tool that provides quick and accessible measurements of download, upload, and ping speeds without requiring installation or account creation.

Why this product is good

  • Free and easy to use with no signup required
  • Provides quick results for download, upload, and ping speeds
  • Accessible directly from a web browser on multiple devices
  • Lightweight interface that doesn't require heavy bandwidth to run the test itself
  • Useful for basic troubleshooting of internet connectivity issues

Recommended for

  • Casual users wanting a quick check of their internet speed
  • People troubleshooting basic connectivity issues at home
  • Users who prefer a simple, ad-light testing experience
  • Those who don't need advanced diagnostics or detailed historical data tracking

Analysis of s3-lambda

Overall verdict

  • s3-lambda is a useful Node.js library for performing operations like map, reduce, and filter directly on S3 objects using Lambda, making it good for developers who need efficient, serverless-based batch processing of S3 data without managing infrastructure. It is well suited for smaller to medium projects but may not be actively maintained for enterprise-scale needs.

Why this product is good

  • Simplifies common S3 batch operations (map, filter, reduce) with a clean, functional API
  • Leverages AWS Lambda for scalable, serverless parallel processing of S3 objects
  • Reduces boilerplate code for iterating over and transforming large numbers of S3 objects
  • Open-source and free to use, allowing customization for specific workflows
  • Integrates well with existing AWS infrastructure and Node.js applications

Recommended for

  • Developers building serverless data pipelines on AWS
  • Teams needing to process or transform large sets of S3 objects without provisioning servers
  • Node.js developers looking for a functional programming approach to S3 operations
  • Projects with batch processing needs that fit within Lambda's execution limits
  • Prototyping or small-to-medium scale ETL tasks involving S3 data

Category Popularity

0-100% (relative to Speed-Check and s3-lambda)

Speed-Check

s3-lambda

Developer Tools
100 100%
Developer Tools
0% 0
Databases
0 0%
Databases
100% 100
Monitoring Tools
100 100%
Monitoring Tools
0% 0
Database Tools
0 0%
Database Tools
100% 100

Questions & Answers

As answered by people managing Speed-Check and s3-lambda.

How would you describe the primary audience of your product?

Speed-Check's answer

Privacy-conscious internet users, remote workers, gamers, and streamers who want a fast, accurate, no-nonsense speed test — plus webmasters, bloggers, and ISPs looking for a free, embeddable widget. Secondary audiences include journalists and researchers who use the global country rankings and the open M-Lab methodology for citations.

What makes your product unique?

Speed-Check's answer

Speed-Check is an open-source, privacy-first internet speed test built on the M-Lab NDT7 protocol (the same standard Google uses) combined with Cloudflare endpoints. Unlike most competitors, it requires no account, stores no personal data on public pages, runs only a single light ad placement, and offers a completely free embeddable widget — features that are paywalled or hidden elsewhere. It also ships with dedicated Chrome and Firefox extensions, a PWA install option, and detailed country-level rankings, glossaries, and guides.

Why should a person choose your product over its competitors?

Speed-Check's answer

Because it combines accuracy with transparency: M-Lab NDT7 results within 2–5% of Ookla, but without the heavy ads, tracking, video pre-rolls, or mandatory accounts. The embeddable widget is free in three sizes (Ookla charges $300+/month for Speedtest Custom), upload/ping/jitter are shown by default (unlike Fast.com, which hides them), and the entire methodology is open and verifiable. Ideal for users, webmasters, and ISPs who value privacy, fairness, and full metrics.

What's the story behind your product?

Speed-Check's answer

Speed-Check was launched in August 2025 as an independent alternative to the ad-heavy, account-gated speed tests that dominate the market. The goal was simple: build a speed test that respects user privacy, uses open measurement protocols (M-Lab NDT7), and gives back to the web by offering a free embeddable widget and browser extensions — without ever asking for a signup.

Which are the primary technologies used for building your product?

Speed-Check's answer

React 18, Vite 5, TypeScript 5, Tailwind CSS, M-Lab NDT7 (measurement protocol), Cloudflare (CDN and edge measurement endpoints), Supabase (backend/edge functions), and PWA standards. Browser extensions are built on Manifest V3 (Chrome) and the WebExtensions API (Firefox 140+).

Who are some of the biggest customers of your product?

Speed-Check's answer

As a privacy first speed test this is unknown to us. None of our users are being tracked by size and they don't need to sign up on our website.

User comments

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What are some alternatives?

When comparing Speed-Check and s3-lambda, you can also consider the following products

Scult Tools - Free tools, prompts and skills for humans and AI agents

PerformanceTest - Run a free website speed test from around the globe using real browsers at consumer connection speeds with detailed optimization recommendations.‎Simple Testing · ‎Visual Comparison · ‎Traceroute · ‎I optimized my first site.

iLoveSchema - Instantly generate and validate JSON-LD Schema Markup for FAQs, Products, Articles, Local Business, Reviews, and more. 100% free, fully Google-compliant, and easy to use

ClickRank.ai - Automate Your Website SEO With The First Data-Driven SEO Automation Tool Powered By Google Search Console & SEO AI.

Free MultiLipi Schema.org Generator - Free Schema.org generator to create JSON-LD structured data, rich snippets, and SEO-friendly schema markup for websites, products, FAQs, and local business pages.

Speedtest.net - Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla

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