HetrixTools offers a free plan with 15 uptime monitors and 1-minute check intervals. Paid plans start at $9.95/month. Lemwatch's free plan covers 10 sites but includes Core Web Vitals, SEO, security, and visual monitoring that HetrixTools doesn't offer at any price.

What is blacklist monitoring?

Blacklist monitoring checks if your server's IP address appears on spam/abuse blacklists (DNSBL). This affects email deliverability and server reputation. It's unique to HetrixTools' focus area — Lemwatch doesn't offer this but focuses on website-facing monitoring instead.

Does HetrixTools monitor website performance?

HetrixTools focuses on server-level metrics (CPU, RAM, disk, network) and uptime pings. It doesn't track Core Web Vitals (LCP, CLS, INP), page load performance, or SEO health. Lemwatch monitors what your visitors actually experience.

Use HetrixTools if you need server resource monitoring, IP blacklist checking, and email reputation tracking. Use Lemwatch if you need website health monitoring (performance, SEO, security, visual changes). Many teams use both — HetrixTools for server-level, Lemwatch for website-level.

Can I migrate from HetrixTools to Lemwatch?

For uptime monitoring, yes — add your URLs to Lemwatch and monitoring starts instantly. However, HetrixTools' blacklist and server monitoring features don't have Lemwatch equivalents, so you may want to keep HetrixTools for those specific needs.

Does Lemwatch do server monitoring?

No. Lemwatch is agentless and monitors websites externally via URL. It doesn't install agents on your servers to track CPU, RAM, or disk usage. For server metrics, keep HetrixTools or use a dedicated infrastructure monitoring tool.

Comparison

Lemwatch vs HetrixTools

HetrixTools combines uptime monitoring with server metrics and IP blacklist checking. Lemwatch focuses on website health — Core Web Vitals, SEO, security, and visual monitoring. Different tools for different monitoring layers.

Last updated May 3, 2026

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TL;DR

Quick Verdict

HetrixTools monitors servers and IP reputation. Lemwatch monitors websites. If you need blacklist monitoring and server resource tracking, HetrixTools is the right choice. If you need Core Web Vitals, SEO, visual changes, and white-label reports, Lemwatch covers that territory. Many teams use both for full-stack coverage.

Choose Lemwatch if you need:

Website health: Core Web Vitals, SEO, security, visual changes
White-label reports for client-facing agencies
Heartbeat/cron monitoring and API endpoints
Incident postmortems and status page subscribers

Choose HetrixTools if you need:

IP blacklist monitoring across 100+ blocklists
Server resource monitoring (CPU, RAM, disk)
Email deliverability reputation tracking
15 free uptime monitors (vs 3)

Compare the workflow, not a stale checklist

Product availability, feature names and plan limits change. Use the current documentation for Lemwatch and HetrixTools to validate the capabilities that matter to your team.

What must the check represent: a public page, an API, or a complete authenticated journey?

Who will configure and own it: a non-technical team, developers, or both?

Which evidence do you need after an alert: request context, a script result, logs, or a customer-facing status?

This page does not treat a feature label as a permanent product fact. Confirm current coverage, implementation requirements and commercial terms with each provider before purchase.

Honest Comparison

Every tool has strengths and weaknesses. Here's an honest look at both.

Pros

Comprehensive website monitoring (6+ dimensions per site)
Core Web Vitals, SEO, and security included
Visual screenshot history with diff comparison
White-label PDF reports for agencies
Incident postmortems and acknowledgment workflow

Cons

No IP blacklist monitoring
No server resource monitoring
Fewer free monitors (3 vs 15)

HetrixTools

Pros

IP blacklist monitoring across 100+ blocklists
Server monitoring with agent
15 free uptime monitors
Budget-friendly pricing

Cons

No SEO monitoring or keyword tracking
No Core Web Vitals or visual changes
No white-label reports
No incident management workflow

How to Switch from HetrixTools

Use this checklist to validate a migration in your own environment.

Export your sites from HetrixTools

Export or copy the monitored URLs from HetrixTools using the options available in your account.

Create your free Lemwatch account

Start with the free plan for 10 sites and confirm the checks, limits, and integrations you need.

Import and map your monitors

Add the relevant URLs and configure the checks you want to run for each site.

Rebuild your HetrixTools alert routing

Configure the notification channels and thresholds available to your plan, then test them against your existing workflow.

Run both workflows in parallel

Compare coverage, alert behaviour, and retained history before deciding whether to change your existing service.

Plan the migration

Confirm the current workflow and import options

Parallel validation

Compare results before changing a production workflow

Free plan

10 sites; review current feature access

Start Your Migration

Need help migrating? Email us at support@lemwatch.com

What HetrixTools costs

HetrixTools costs $0/mo free for life (15 uptime monitors), then $9.95/mo Professional, $19.95/mo Business and $49.95/mo Enterprise. Yearly billing gives two months free, and every plan checks every minute.

Plan	Price	What you get
Free	$0/mo	15 uptime + 15 server monitors, 1-minute checks, 4 locations, 3 white-label domains, 15-day activity log
Professional	$9.95/mo	30 uptime + 30 server monitors, 1-minute checks, 6 locations, 5 sub-accounts, 25 phone/SMS credits a month
Business	$19.95/mo	60 uptime + 60 server monitors, 9 locations, full white label, 20 sub-accounts, 50 phone/SMS credits a month
Enterprise	$49.95/mo	200 uptime + 200 server monitors, 12 locations, 20 white-label domains, 50,000 API calls, 125 phone/SMS credits a month

Prices checked on 18 September 2026 on HetrixTools’s own pricing page. Vendors change plans without notice.

Full HetrixTools pricing breakdown