
Speedtest.net
Testmy.net
Speed Test by Cloudflare
SpeedOf.Me
LibreSpeed
nPerf
OpenSpeedTest
Quickly test your internet speed with this fast-loading speed test powered by Netflix.

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, Fast.com seems to be a lot more popular than ZipCheckup. While we know about 1688 links to Fast.com, we've tracked only 1 mention of ZipCheckup.
Website, pricing, platforms and company facts side by side.
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| Website | fast.com | zipcheckup.com |
| Pricing | — | |
| Company | Startup from the United States | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Fast.com 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.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Speedtest.net vs Fast.com | why different results ?
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How often each product is chosen within a category, 0–100% relative to the other.


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


That is exactly how fast.com works for internet speed tests. You open it, it runs, you see a number. Done. - Source: dev.to / 5 months ago
Pro tip: Run a speed test immediately before the event. Don't trust your "up to 100 Mbps" ISP claim. Use fast.com or speedtest.net to get real numbers. - Source: dev.to / 8 months ago
Speedtest has always seemed incredibly sketchy to me, I don’t know if others share this sentiment. https://fast.com completed the test faster than speedtest loads the site. - Source: Hacker News / 8 months 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 Fast.com and ZipCheckup, you can also consider the following products.

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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.
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Accurately test your Internet connection speed with this powerful broadband speed test. Improve your bandwidth speed with the truth.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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speed.cloudflare.com is a tool that allows you to measure the speed and consistency of your connection to the Internet. You can use it to verify that the speed your ISP promised you is the speed you are getting.
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SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!
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