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Speed-Check VS assertpy

Compare Speed-Check VS assertpy and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

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 โ€” no signup, no tracking, no app required.

assertpy logo assertpy

A straightforward assertion library for Python.
  • 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 โ€” 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 2โ€“5% of Ookla Speedtest, but without the heavy ads, account walls, or invasive analytics.

Key Features

  • โšก Full metrics by default โ€” download, upload, ping, and jitter (no hidden upload like Fast.com)
  • ๐Ÿ”’ Privacy-first โ€” no cookies, no personal data stored, GDPR-compliant
  • ๐ŸŒ Global server network โ€” M-Lab + Cloudflare endpoints worldwide
  • ๐Ÿงฉ Free embeddable widget โ€” add a speed test to any website in 3 sizes (no paid tier)
  • ๐Ÿงช Open methodology โ€” protocol and code logic publicly documented
  • ๐Ÿ“ฑ Apps & extensions โ€” Progressive Web App (PWA), Chrome extension (Manifest V3), Firefox extension (140+)
  • ๐Ÿ“Š Country rankings โ€” broadband and mobile speeds for 200+ countries
  • ๐Ÿ“š Knowledge hub โ€” 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.

  • assertpy Landing page
    Landing page //
    2022-11-06

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

assertpy

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Categories
#Testing #Python
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 โ€” 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

assertpy features and specs

  • Fluent API
    Assertpy offers a fluent API that makes assertions more readable and expressive, enabling developers to write assertions in a natural language style that is easy to understand.
  • Chainable Assertions
    It allows for chainable assertions, enabling multiple checks to be performed in a single line of code, thereby reducing verbosity and enhancing clarity.
  • Comprehensive Assertion Methods
    The library provides a wide range of built-in assertion methods, catering to various types of data validations, such as checking for size, type, value, and more.
  • Extensibility
    Assertpy supports extending its functionality by defining custom assertions, allowing developers to tailor it to their specific needs.
  • Pythonic
    Designed with Pythonic principles in mind, Assertpy fits seamlessly into Python projects, enabling idiomatic and consistent code style.

Possible disadvantages of assertpy

  • Learning Curve
    Developers new to the library may encounter a learning curve due to the distinct approach of using fluent and chainable assertions as opposed to traditional methods.
  • Limited by Python Version
    The library may have limitations in terms of compatibility with older versions of Python, requiring users to ensure their environment is up-to-date.
  • Performance Overhead
    The additional abstraction layer introduced by a fluent interface might introduce some performance overhead, especially in performance-critical or resource-constrained environments.
  • Less Community Support
    Compared to more established testing libraries, Assertpy might have less community support and fewer resources available for resolving issues or getting help.
  • Dependency Management
    Using a third-party library introduces additional dependencies to manage, which could complicate project maintenance and compatibility.

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 assertpy

Overall verdict

  • assertpy is a well-regarded, lightweight assertion library for Python that provides a fluent, chainable API for writing readable and expressive test assertions, making it a solid choice for improving test clarity.

Why this product is good

  • Offers a fluent, chainable assertion syntax that makes tests more readable and self-documenting
  • Comprehensive built-in assertions for strings, numbers, lists, dicts, files, dates, and more
  • Produces clear, descriptive failure messages that speed up debugging
  • Lightweight with minimal dependencies and easy to integrate into existing test suites
  • Framework-agnostic, working seamlessly with pytest, unittest, and other test runners
  • Actively maintained open-source project with good documentation and community support

Recommended for

  • Python developers who want more readable and expressive test assertions
  • Teams using pytest or unittest looking to enhance assertion clarity
  • Projects that value descriptive failure messages for faster debugging
  • Developers coming from fluent assertion libraries in other languages (like AssertJ or Chai)
  • QA engineers and testers writing maintainable, self-documenting test code

Category Popularity

0-100% (relative to Speed-Check and assertpy)

Speed-Check

assertpy

Developer Tools
100 100%
Developer Tools
0% 0
Testing
0 0%
Testing
100% 100
Monitoring Tools
100 100%
Monitoring Tools
0% 0
Python
0 0%
Python
100% 100

Questions & Answers

As answered by people managing Speed-Check and assertpy.

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 โ€” 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 โ€” 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 2โ€“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 โ€” 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 assertpy, you can also consider the following products

Scult Tools - Free tools, prompts and skills for humans and AI agents., 15 tools your AI agent can call. No signup, no API key.

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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.

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