Head-to-head
New Relic Synthetics vs Zabbix
Short answer: pick New Relic Synthetics if: You already run New Relic APM and want synthetic checks tied to the same account. Pick Zabbix if: You have infrastructure engineers who want total control and no licence cost. Pick Lemwatch if you want uptime, page changes, SEO, security and speed checked in one tool — free for 10 sites, then $19/mo.
Pricing, check intervals and category fit — verified against each vendor's public pricing page.
Side-by-side snapshot
| Metric | New Relic Synthetics | Zabbix |
|---|---|---|
| Entry paid tier | $49/mo · Standard (per user) | $0/mo · Open source (AGPLv3) |
| Free tier | yes | yes |
| Min check interval | 60s | 1s |
| Category | apm | uptime |
Verified facts: Lemwatch vs New Relic Synthetics
Sourced from New Relic Synthetics's public pricing and docs.
Entry paid
$49/mo
Standard (per user)
Free tier
Yes
Min check interval
1 min
Last verified
2026-06-28
New Relic Synthetics strengths
- Unified with New Relic APM, RUM, and logs
- Free tier includes 100 GB ingest per month
- Scripted browser checks with real Chrome
Where it falls short
- Per-user pricing model is punishing for shared use
- Data-cap billing can spike unexpectedly
- Not designed for SEO or marketing-site monitoring
Choose New Relic Synthetics when
You already run New Relic APM and want synthetic checks tied to the same account.
Lemwatch advantage
Lemwatch is billed per organization (not per user) and includes SEO + content diffs New Relic doesn't ship.
Verified facts: Lemwatch vs Zabbix
Sourced from Zabbix's public pricing and docs.
Entry paid
$0/mo
Open source (AGPLv3)
Free tier
Yes
Min check interval
1s
Last verified
2026-09-10
Zabbix strengths
- Fully open source under AGPLv3 with no licence fee or device limits
- Extremely configurable — any metric, any interval, any trigger
- Optional paid support subscriptions with response-time SLAs
Where it falls short
- You host, patch and scale it yourself
- Steep setup and template learning curve
- No built-in SEO, sitemap or visual-change monitoring for websites
Choose Zabbix when
You have infrastructure engineers who want total control and no licence cost.
Lemwatch advantage
Lemwatch needs no server, no templates and no maintenance — you add a domain and checks start immediately.
Where Lemwatch fits
Both New Relic Synthetics and Zabbix focus on apm/uptime. Lemwatch bundles uptime, SEO indexation, Core Web Vitals, security headers and visual diffs — free for 10 sites, no credit card, then $19/mo.