Oh Dear has a deserved reputation as one of the most developer-friendly monitoring tools on the market. Built by two developers who run it as a bootstrapped business, it's opinionated, well-documented, and beloved in the Laravel and PHP community. If you've heard of it, you've probably heard good things.
So why would you use Vigilmon instead?
The honest answer: it depends on what you're monitoring, how much you want to pay, and whether you need a free tier that actually works at 1-minute intervals.
This article breaks down both tools side by side so you can make the call.
What Oh Dear Is
Oh Dear is a SaaS monitoring platform founded in 2018 by two developers from the Laravel and PHP communities. It monitors:
- HTTP uptime (with content checks)
- SSL certificates
- Mixed content (insecure assets on HTTPS pages)
- Broken links (crawls your site and finds dead URLs)
- Domain expiry
- DNS changes
- Performance metrics (via Lighthouse)
- Scheduled tasks (cron heartbeats)
- Application health checks
Oh Dear is genuinely feature-rich and priced as a premium product. There is no free tier — plans start at $17/month.
What Vigilmon Is
Vigilmon is a focused uptime monitoring platform built around multi-region consensus — the idea that a single probe declaring your site down isn't reliable enough. Instead, Vigilmon requires multiple geographically distributed checks to agree before firing an alert, which eliminates false positives caused by regional network glitches, DNS hiccups, or probe-side failures.
Vigilmon covers HTTP/HTTPS monitoring, TCP port checks, SSL certificate monitoring, heartbeat (cron job) monitoring, webhook delivery, and a built-in status page. It has a generous free tier, is self-hostable and open-source, and is designed to be running in under two minutes.
Feature Comparison
| Feature | Vigilmon | Oh Dear |
|---|---|---|
| Free tier | Yes — 5 monitors, 1-min intervals | No |
| Starting price | $0 (free) / ~$10–20/mo (Pro) | $17/month |
| HTTP/HTTPS monitoring | Yes | Yes |
| TCP port monitoring | Yes | No |
| SSL certificate monitoring | Yes | Yes |
| Broken link detection | Yes | Yes |
| Mixed content detection | No | Yes |
| DNS monitoring | Yes | Yes |
| Domain expiry monitoring | No | Yes |
| Scheduled task / heartbeat monitoring | Yes | Yes |
| Performance monitoring (Lighthouse) | No | Yes |
| Status page | Yes, built-in | Yes, built-in |
| Multi-region consensus | Yes | No — single probe |
| Self-hostable | Yes (open source) | No |
| Alert channels | Email, Slack, webhook | Email, Slack, Telegram, webhook, SMS |
| Check interval (free) | 1 minute | No free tier |
| Check interval (paid) | 30 seconds | 1 minute |
| API | Yes (REST) | Yes (REST) |
| Laravel ecosystem integration | Good | Excellent (native Laravel package) |
Pricing: The Clearest Difference
This is where the two tools diverge most sharply.
Oh Dear Pricing
| Plan | Price/month | Sites | Checks |
|---|---|---|---|
| Starter | $17 | 5 | Core uptime + SSL + cron |
| Standard | $34 | 15 | All features |
| Business | $68 | 50 | All features |
| Enterprise | Custom | Unlimited | All features |
Oh Dear charges per site, not per monitor type. If your site needs uptime, SSL, broken link, and cron monitoring, that's all included per-site — which is a reasonable value proposition if you use those features. But $17/month minimum means there's no way to try Oh Dear with real production traffic for free.
Vigilmon Pricing
| Tier | Cost | Monitors | Check Interval |
|---|---|---|---|
| Free | $0 | 5 managed / unlimited self-hosted | 1 minute |
| Pro | ~$10–20/month | More monitors | 30 seconds |
| Self-hosted | ~$5/month VPS | Unlimited | Configurable |
Vigilmon's free tier runs checks every minute — not every 5 minutes, which is what most other free-tier monitors offer. For a bootstrapped SaaS or solo developer, the difference between knowing about an outage in 1 minute vs. 5 minutes is material. And $0 vs. $17/month is even more material.
The Multi-Region Consensus Advantage
Oh Dear's monitoring uses a single check location model — one probe tests your URL, and if it fails, the alert fires.
This is the standard approach in the industry, and it works. But it means that any single-point failure — a flaky upstream connection between Oh Dear's probe and your server, a transient DNS resolution issue, a CDN routing glitch in one geography — can trigger an alert that represents no actual user impact.
Vigilmon's multi-region consensus requires a quorum of geographically distributed probes to agree on failure before alerting. A failed check from one region while all others succeed doesn't fire. Only genuine outages that multiple independent vantage points agree on result in a notification.
For teams that have learned to second-guess their monitoring (the classic "is it actually down or is it just the monitor?"), this architectural difference changes how much you trust your alerts.
Where Oh Dear Wins
Oh Dear has genuine capabilities that Vigilmon doesn't have:
Broken link crawling: Oh Dear crawls your site and finds broken internal and external links. It runs on a schedule and alerts you when new broken links appear. This has been a flagship feature since the product launched.
Mixed content detection: If your HTTPS site is loading insecure (HTTP) assets — images, scripts, fonts — Oh Dear finds them. This is a SEO and security concern that Vigilmon doesn't currently address.
Domain expiry monitoring: Oh Dear watches your domain registration expiry date and alerts you before you accidentally let your domain lapse.
Performance monitoring: Oh Dear runs Lighthouse on a schedule and tracks Core Web Vitals over time — FCP, LCP, CLS, TBT. If you want to monitor performance regressions in production without setting up your own Lighthouse CI, Oh Dear provides this.
Laravel ecosystem fit: If your stack is Laravel, Oh Dear is the obvious choice. The integration story is native, with an idiomatic Laravel API client and community familiarity.
Where Vigilmon Wins
Free tier that actually works: No credit card, no 5-minute check interval compromise. Vigilmon's free tier runs 5 monitors at 1-minute intervals, includes a status page, and has Slack/webhook delivery. For early-stage products, solo developers, and budget-constrained teams, this is a significant advantage.
Multi-region consensus: Fewer false positives, more trustworthy alerts. If your team has alert fatigue, this is the feature that fixes it.
TCP monitoring: Vigilmon watches TCP ports, not just HTTP endpoints. If you're running a database server, a mail server, or any non-HTTP service, Vigilmon covers it. Oh Dear doesn't.
Self-hostable and open source: You can run Vigilmon on your own infrastructure with no per-monitor cost and no SaaS dependency. For teams in regulated industries or with data residency requirements, this matters.
Price at scale: At 50 monitors, Vigilmon's Pro tier is substantially cheaper than Oh Dear's equivalent plan.
Who Each Tool Is For
Choose Oh Dear when:
- You're a Laravel/PHP developer and want native ecosystem integration
- You care about broken links, mixed content, and domain expiry monitoring
- You want Lighthouse-based performance tracking baked into your monitoring
- You're monitoring a modest number of sites and can justify $17+/month
- You want one tool that covers uptime, SSL, links, DNS, cron, and performance in a single dashboard
Choose Vigilmon when:
- You can't or don't want to spend $17/month minimum before validating your product
- You want a free tier with 1-minute intervals (not the 5-minute compromise most free tiers offer)
- Multi-region consensus matters to you — you want to trust your alerts, not second-guess them
- You're monitoring TCP services alongside HTTP
- You want self-hosted, open-source infrastructure
- You're monitoring a large number of services and want predictable, lower per-monitor pricing
Real-World Scenarios
Freelancer managing 3 client websites: Oh Dear costs $17/month minimum. Vigilmon's free tier covers all 3 sites with status pages and 1-minute checks for $0/month. Verdict: Vigilmon, unless you're billing monitoring to clients.
Laravel SaaS, 2 developers, early revenue: Oh Dear is purpose-built for this — native Laravel package, cron monitoring, familiar community. Vigilmon works well but feels slightly less native. Verdict: Oh Dear if you're embedded in the Laravel community; Vigilmon if budget is a constraint.
10-person product team, 40+ services: Oh Dear's Business plan at $68/month caps at 50 sites. Vigilmon Pro or self-hosted covers 40+ monitors at significantly lower cost with no per-site cap on self-hosted. Verdict: Vigilmon on cost and scalability.
Conclusion
Oh Dear is an excellent product. If you're a Laravel developer who values thoughtful software made by people who understand your ecosystem, Oh Dear will feel like it was made for you. The broken link crawling, mixed content detection, and Lighthouse integration are genuinely useful features that Vigilmon doesn't offer.
But for developers who need accurate uptime monitoring without the $17/month minimum — and who want alerts they can actually trust thanks to multi-region consensus — Vigilmon is the stronger choice. The free tier is real and useful. The architecture reduces false positives. And self-hosting means you can scale monitoring without scaling your bill.
Neither tool is wrong. They're built for slightly different audiences, and the best choice depends on which features actually matter to your operation.
Try Vigilmon for free at vigilmon.online — no credit card, 1-minute check intervals, status page included, and multi-region consensus that means you'll trust your alerts when they fire.
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