HetrixTools pairs uptime monitoring with IP and domain blacklist checks - a favourite of hosting providers. But if you need cron heartbeats, DNS change alerts or game-server monitoring, the coverage runs out. Here is an honest look at where each one wins, and which HetrixTools alternative fits your stack.
Comparison reviewed May 2026 - no credit card required
Both are capable, affordable tools. The deciding factor is one specific feature - and how much else you need to watch.
Capabilities first - the differences that change how you work and what you pay. Pricing is summarised at the bottom of the table.
| Capability | Uptimewolf | HetrixTools |
|---|---|---|
| Website, endpoint & port monitoring | ||
| IP & domain blacklist monitoring | Not offered | Signature feature |
| Cron job & heartbeat monitoring | Not a focus | |
| DNS record change monitoring | All plans | Not a focus |
| Domain & SSL certificate expiry | Domain + SSL | SSL monitoring |
| Server CPU / RAM / disk monitoring | Linux · Windows · macOS | Server monitoring |
| Game server monitoring | 20 titles | Not offered |
| Branded status pages | Included | Included |
| Full REST API | Every plan | Available |
| Free plan | Free forever: 2 monitors, 2 status pages | Limited free tier |
| Starting paid price | $2.99 / mo | ~$9.95 / mo and up |
Competitor details last checked May 2026 against public sources. HetrixTools prices uptime and blacklist monitoring as separate products - cells marked for review are flagged in the page source. Re-verify at hetrixtools.com/pricing before publishing.
HetrixTools owns a niche that Uptimewolf simply doesn't compete in.
It watches dozens of IP and domain blacklists and tells you the moment an address gets listed - with delisting links to act on it. For anyone sending mail or running infrastructure, that's genuinely valuable.
HetrixTools is a long-standing favourite of hosts and datacenter operators who need to keep large IP ranges clean and reputable. That focus shows in the product.
Uptime monitoring and blacklist monitoring under one login, both with a free tier to start. If those are exactly the two jobs you have, it's a tidy fit.
Outside the blacklist niche, Uptimewolf covers far more of the stack - and bundles in what HetrixTools leaves out.
Monitor scheduled jobs, backups and batch workers - get alerted the moment an expected ping doesn't arrive.
Watch A, AAAA, CNAME, MX, TXT and more, and get told the instant a record changes - intended or not.
Uptime, latency, player counts and slots across 20 titles - coverage HetrixTools doesn't offer.
Flat plans from $2.99/mo, with status pages and the full REST API on every tier - no per-product split.
If keeping IPs and domains off spam blacklists is a core job - typically for hosting providers and high-volume senders - HetrixTools is purpose-built for it, and we won't pretend otherwise.
If that's not your situation, you're choosing between a focused blacklist-and-uptime tool and a broader monitoring platform. Uptimewolf covers uptime, cron, DNS, domain, SSL, servers and game servers - more surface, lower entry price. Start a free 5-day trial
No lock-in on either side. Run both in parallel for a day, then switch when you're confident.
Note the URLs, IPs and server checks you watch in HetrixTools today, and which alert integrations they use.
Add them by hand in a few clicks - or, for a large fleet, script the whole migration through the REST API.
Keep both running for a day to confirm parity, then cancel HetrixTools once you're confident. Keep it only if you still need blacklist checks.
5-day free trial - no credit card - cancel anytime.
Flat and predictable - pay monthly or save annually. Every plan includes status pages and the full REST API.
For side projects and personal sites.
For growing teams running real workloads.
For agencies and production fleets.
For most teams, yes. HetrixTools is best known for combining uptime monitoring with IP and domain blacklist monitoring. Uptimewolf is a broader availability tool - uptime, ports, cron heartbeats, DNS, domain, SSL, servers and game servers - with status pages and a full API on flat plans from $2.99/month. If blacklist monitoring isn't a hard requirement, Uptimewolf covers more monitoring surface for less.
No - and this is an honest point in HetrixTools' favour. IP and domain blacklist monitoring - checking whether your addresses appear on spam or abuse blacklists - is HetrixTools' signature feature. If that's essential, HetrixTools is the better fit. Uptimewolf focuses on availability and performance monitoring across more surface area, including game servers.
HetrixTools focuses on uptime, server resource and blacklist monitoring. Cron job heartbeats and game-server monitoring are areas where Uptimewolf offers coverage that HetrixTools does not.
Yes. HetrixTools offers a limited free tier for basic uptime and blacklist monitoring. Uptimewolf has one too: the Free plan is free forever, with no card - 2 uptime monitors, 2 heartbeats, 2 DNS and 2 domain monitors, 1 server monitor, 2 game servers and 2 status pages. Paid plans add capacity and faster checks, and each starts with a 5-day trial. All 16 network tools are free for everyone.
Uptimewolf runs uptime checks from multiple worldwide locations and alerts within seconds of a failed check. HetrixTools also runs frequent uptime checks; its blacklist checks run on a slower schedule that varies by plan.
Re-create your monitors in Uptimewolf - most setups take just a few minutes - or script the migration through the REST API for a large fleet. There's no lock-in, so you can run both in parallel before switching.
No credit card. No lock-in. If HetrixTools still fits you better, you'll know fast.
HetrixTools is a trademark of its respective owner. This page is an independent comparison and is not affiliated with or endorsed by them.