
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.

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.

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.
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| Website | zipcheckup.com | github.com |
| Pricing | — | |
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


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...
No description of LibreSpeed yet.
What each product offers, as listed by its team.


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


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


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


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
I run internetspeedtest.net, a free, no-signup speed test built on the open-source LibreSpeed engine. - Source: dev.to / about 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
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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