
Fast.com
Speedtest.net
SpeedOf.Me
Testmy.net
nPerf
Speed Test by Cloudflare
speedtest-cli
Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.

usZIPCodes.org
Zipcodestack
Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.

Which is more popular?
Based on our record, LibreSpeed seems to be a lot more popular than ZipCheckup. While we know about 34 links to LibreSpeed, we've tracked only 1 mention of ZipCheckup.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | github.com | zipcheckup.com |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of LibreSpeed yet.
ZipCheckup analyzes 50+ federal data sources (EPA, FEMA, CDC, USGS, Census) to generate free home safety reports for all 42,679 U.S. ZIP codes. Covers water quality, lead risk, PFAS contamination, flood risk, radon, wildfire, earthquake, mold, and 9 more safety categories. 283,000+ pages, updated...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of LibreSpeed yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Self-host your own internet speed test with LibreSpeed!
More videos
No ZipCheckup videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using LibreSpeed and ZipCheckup. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I run internetspeedtest.net, a free, no-signup speed test built on the open-source LibreSpeed engine. - Source: dev.to / 2 months ago
Try hosting a DIY speed test on a cloud server (like Google colab or the free oracle instances or whatever): https://github.com/librespeed/speedtest. - Source: Hacker News / over 3 years ago
It should be DIA. They provide the internet connection to the company since 2 decades and it's a very small ISP, so it's very vague in terms of contract. Iperf was giving me very terrible results with TCP, UDP was giving me a couple of... Source: over 3 years ago
I spent the last few months stitching it all together into one site. ZipCheckup. Type in a ZIP code, get a full home safety profile. 278,000 pages. 50+ data sources. Running on $5/month. - Source: dev.to / 7 months ago
When comparing LibreSpeed and ZipCheckup, you can also consider the following products.

Quickly test your internet speed with this fast-loading speed test powered by Netflix.
Compare Fast.com to LibreSpeed or ZipCheckup:

Use our free ZIP Code Analysis Tool to find city, state, county, population, and timezone details for any U.S. ZIP code. Fast, accurate, and privacy-safe lookup.
Compare usZIPCodes.org to LibreSpeed or ZipCheckup:

Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla
Compare Speedtest.net to LibreSpeed or ZipCheckup:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to LibreSpeed or ZipCheckup:

SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!
Compare SpeedOf.Me to LibreSpeed or ZipCheckup:

Accurately test your Internet connection speed with this powerful broadband speed test. Improve your bandwidth speed with the truth.
Compare Testmy.net to LibreSpeed or ZipCheckup: