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SiteGuardian vs UptimeRobot. Uptime pings plus four checks it does not run.
UptimeRobot watches uptime. It does not crawl your site for broken links, does not watch your checkout, and does not test your forms. SSL is paid-only on Solo and up. SiteGuardian ships uptime, SSL expiry, broken-link coverage, checkout-failure monitoring, and form-failure monitoring on every paid plan, in one inbox.
- One loud email when your site goes down. No dashboard login.
- Permanent minutely probe cadence on the paid SiteGuardian plan.
- SSL expiry alerts on every paid SiteGuardian plan, included — not an add-on.
- Watches the URL list you configured and re-probes it for broken links, in the same email.
- Watches your checkout and your contact form — alerts in the same email when either breaks.
- No free tier on SiteGuardian. You pay for the watch, by the month.
- Custom slow threshold per URL, set in plain English.
- Built for one founder, one inbox, one storefront.
When UptimeRobot is the right fit
UptimeRobot Free is the right fit when you need many monitors, do not care about minute-by-minute detection, and a public status page is part of the buy.
When SiteGuardian is the right fit
SiteGuardian is the right fit when you want minutely probes, one loud email per outage, and a paid product that does not pretend the dashboard is the job.
Quick answer
SiteGuardian vs UptimeRobot, in one paragraph.
SiteGuardian wins on the watch, not on the free ceiling. UptimeRobot is the broadest free uptime monitor in the category, with up to fifty monitors on a 5-minute cadence, but it is strictly an HTTP-ping product — no broken-link crawler, no checkout-path probe, no form-path probe, and SSL expiry alerts are paid-only. SiteGuardian ships uptime, SSL expiry, broken-link coverage, checkout-failure monitoring, and form-failure monitoring on every paid plan, in one loud email, with minutely probes on Pro. Pick SiteGuardian when one inbox and four URL-side checks beat a free dashboard; pick UptimeRobot when free is the deciding factor.
What is SiteGuardian vs UptimeRobot?
SiteGuardian is a paid URL-side monitor (uptime, SSL expiry, broken links on the URL list, checkout, forms) that emails one inbox per outage. UptimeRobot is a free-and-paid HTTP-ping uptime monitor that ships a 5-minute cadence on Free, 1- to 30-second cadence on paid Solo / Team / Scale, a public status page, and SSL expiry only on Solo and up. The categories overlap on uptime and SSL; SiteGuardian adds the three URL-side checks UptimeRobot does not run.
Is UptimeRobot better than SiteGuardian?
UptimeRobot is better when free is the deciding factor, when you want a public status page in the same product, or when you need more than a few URLs under watch. SiteGuardian is better when you want minutely probes, one loud email per outage, and the four URL-side checks (uptime + SSL + broken links + checkout + forms) on a single paid tier with no per-monitor math.
Which is cheaper for one storefront?
UptimeRobot Free is $0 and cheaper in absolute dollars. SiteGuardian Starter is $19 a month; SiteGuardian Pro is $39 a month. Across twelve months of paid use, SiteGuardian Starter is cheaper than UptimeRobot Solo (around $12/mo annual) and ships the four URL-side checks UptimeRobot does not. The cheapest-by-the-month depends on whether free or paid is the right tier for the storefront.
Does UptimeRobot monitor checkout failures?
No. UptimeRobot is an HTTP-ping product. It will tell you when the checkout URL returns 5xx, and that is all. It will not flag a checkout that is slow but technically up, and it does not run a checkout-specific path probe. SiteGuardian probes the checkout URL on the same cadence as your uptime checks and emails you when it goes slow or returns errors.
Does UptimeRobot have a free tier?
Yes — UptimeRobot Free runs up to fifty monitors on a 5-minute cadence, with email-only alerts and a free public status page. SSL expiry alerts are not on Free; they ship on paid Solo and up. SiteGuardian does not run a free tier; it is paid from the first URL at $19 a month for Starter.
Feature-by-feature
Where each one differs, side by side.
The rows below are the axes a small shop should care about most when choosing a monitor. Anything outside this list is something most small shops do not use.
| Feature | SiteGuardian | Competitor |
|---|---|---|
| Probe cadence (paid) | Every minute | Every minute |
| Probe cadence (free tier) | Every 5 minutes | |
| Alert destination | One inbox | Email, SMS, Slack, webhooks |
| Public status page | ||
| Custom slow threshold per URL | Global only | |
| Maintenance windows | Pause via dashboard | Built-in scheduler |
| Free tier | Up to 50 monitors on Free | |
| Pricing model (paid) | $19/mo Starter, $39/mo Pro, $299 once Lifetime | Free; Solo ~$9/mo; Team ~$33/mo annual |
| AI-powered root cause | Not yet available | Not yet available |
| SSL expiry alerts | On paid Solo and up | |
| Broken-link coverage | Watches your configured URL list | |
| Checkout-failure monitoring | ||
| Form-failure monitoring |
Pricing, line by line
UptimeRobot’s real public pricing, next to SiteGuardian’s.
Each row is one tier the competitor publishes on their pricing page, plus SiteGuardian Starter / Pro / Lifetime. The verification trail below the table names the source URL and the date we re-checked it.
| Tier | Price | What you get |
|---|---|---|
SiteGuardianSiteGuardian Starter | $19/month | 1 site, 10 URLs, every-5-min probes |
SiteGuardianSiteGuardian Pro | $39/month | 3 sites, 50 URLs, every-1-min probes |
SiteGuardianSiteGuardian Lifetime | $299 once | 1 site, 50 URLs, every-5-min probes, all future updates included |
CompetitorUptimeRobot Free | $0/month | Up to 50 monitors, 5-minute probe cadence, no SSL |
CompetitorUptimeRobot Solo | ~$12/month (annual) | 1-minute cadence, SMS alerts, 1 status page |
CompetitorUptimeRobot Team | ~$39/month (annual) | Most-popular plan; 100 monitors, 30-sec cadence, SMS, Slack, multi-user alerts |
CompetitorUptimeRobot Scale | ~$79/month (annual) | 200–500 monitors, 30-sec cadence, 5 seats, white-label status pages |
Verification trail
- SiteGuardian — SiteGuardian Starter: https://siteguardian.app/pricingverified 2026-08-23
- SiteGuardian — SiteGuardian Pro: https://siteguardian.app/pricingverified 2026-08-23
- SiteGuardian — SiteGuardian Lifetime: https://siteguardian.app/pricingverified 2026-08-23
- UptimeRobot — UptimeRobot Free: https://uptimerobot.com/pricing/verified 2026-08-23
- UptimeRobot — UptimeRobot Solo: https://uptimerobot.com/pricing/verified 2026-08-23
- UptimeRobot — UptimeRobot Team: https://uptimerobot.com/pricing/verified 2026-08-23
- UptimeRobot — UptimeRobot Scale: https://uptimerobot.com/pricing/verified 2026-08-23
Honest pros & cons
What each tool genuinely does well — and where it’s rough.
UptimeRobot
Pros
- Real free tier (around 50 monitors at 5-min cadence as of August 2026).
- Public status page ships on the free tier, not behind a paid plan.
- Many alert destinations: email, SMS, Slack, webhooks.
- Established category leader since 2009 — biggest uptime-monitor brand by name recognition.
Rough edges
- 5-minute cadence on the free tier; minute-by-minute is a paid bump.
- Custom slow thresholds are global; per-URL thresholds are a paid plan.
SiteGuardian
Pros
- Per-URL slow thresholds on every plan, set in plain English.
- No per-monitor, per-seat, or per-check math. Three flat tiers.
- Minutely probe cadence on Pro, paid from day one.
Rough edges
- No free tier; you pay for the watch from the first URL.
- No public status page in the boxed product.
Who it’s for
The two buyer profiles — and which one you are.
UptimeRobot is for
One shop that wants as many free monitors as possible and does not mind a 5-minute cadence.
SiteGuardian is for
One founder who wants one loud email per outage and is happy to pay $19 a month for it.
The verdict
SiteGuardian for the watch; UptimeRobot for the free ceiling.
Pick SiteGuardian if
The one-founder shop on Shopify, Squarespace, or Wix that wants minutely probes and one loud email per outage.
Pick UptimeRobot if
Anyone who wants a wide free ceiling, a public status page, and is happy with 5-minute cadence until they pay.
Frequently asked
The buying-time questions, answered flat.
Frequently asked
Mega comparison
See every comparison we wrote.
Nineteen alternatives, side by side in one decision matrix.
Try it
If UptimeRobot feels heavier than you need. Try SiteGuardian.
Starter is $19 a month. One site, ten URLs, every-five-minute checks. Pro is $39 a month. Three sites, fifty URLs, every-minute checks. Lifetime is $299 paid once and stays yours with every future update included.
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