1. Verdict
No as described. Go small, only as lead-form monitoring for care-plan agencies, with a day-45 kill test.
Why a ladder instead of one target
This idea is assessed at six MRR levels instead of one fixed target. Small B2B tools have skewed outcomes: many never pass a handful of customers, some settle at a comfortable monthly figure, and very few break out. A single "$20k MRR" number hides the most useful information: how likely each level is, and what each level costs in hours.
Why there is no base rate
There is no verified base rate for bootstrapped B2B micro-SaaS.
- No public dataset tracks new B2B tools from launch and reports the share that reach $1k, $10k or $50k MRR within 24 months.
- Listicle figures ("~70% of micro-SaaS earn under $1k MRR", "median profitable micro-SaaS ~$4.2k") turned up in this run's search. They cite no dataset, and the catalog found every such statistic failed verification. Not used.
- RevenueCat (17.3% of new apps reach $1k/month, 4.6% reach $10k in 2 years) measures consumer mobile apps. Shown for reference only.
- What the category does show is survivors, not rates:
- Hyperping: first revenue Jan 2018 ($22). About $2.5k/month by Oct 2019. $7k–13k in 2022–23. ~$20k/month by 2024–26 (Indie Hackers revenue page; the Aug 2023 "$15k MRR" figure is a third-party write-up citing the founder). 9 months to $500 MRR. Built while the founder held a full-time job.
- Oh Dear: 2 founders, >$83k/month (~$1M ARR) after ~8 years (founder-reported, Sept 2025). Word of mouth and building in public; ads and SEO worked less well.
- OnlineOrNot: solo, $127 MRR after 8 months, 7 paying customers (founder, Nov 2021). One customer had been over half of MRR.
The odds below are therefore judgment estimates, set by reasoning from this evidence and kept consistent with the other ideas in this portfolio.
What pushes the odds up and down
Up:
- Cheap to build and run. Headless browsers, inbound email parsing and RDAP/TLS checks are commodity parts. Gross margin ~85%.
- B2B pricing. ~125 agency accounts is $10k MRR.
- Agencies bill care plans monthly (published care plans cluster at roughly $80–300/month per client site, vendor blogs, low confidence). A $1–2/form cost is easy to pass through.
- A measurable money outcome. A lost lead for a law firm or clinic is worth real money, and "your form was down 11 days" is concrete.
- The leaders don't do it. Oh Dear's check list has no form submission or email-delivery test. WP Umbrella and ManageWP check uptime, not lead arrival.
- Small tailwinds for the bundled basics: certificate lifetimes fall to 200 days (15 Mar 2026) and 100 days (15 Mar 2027). Let's Encrypt stopped expiry emails on 4 June 2025.
Down:
- Most crowded idea in the catalog. 35+ uptime tools. Free tiers from Better Stack, Hyperping and Red Sift.
- Incumbents own the agency relationship already. Oh Dear (agency reseller programme), WP Umbrella (5,000+ agencies, vendor claim), ManageWP, MainWP. Any of them could add form tests.
- Failure frequency is unknown. If forms rarely break, customers see no value and churn.
- The wedge has no revenue proof. FormPulse, FormTracker, Velnix (fewer than 10 installs) and a built-in Craft CMS monitor exist. None publishes revenue.
- Cloneable. The catalog's own conclusion: in monitoring, code is easy to clone with AI; distribution and reliability are the only protection.
- Reliability duty. You must be reachable 7 days a week. That cuts against limited hours.
Odds at each MRR level (reached by month 24)
| MRR at month 24 | Base rate | As described (uptime + SSL + domain + status page, agencies, $12–15 entry) | White-label monitoring for WordPress agencies | Certificate and domain expiry for the 47-day era (MSPs, IT teams) | Monitoring for Webflow / Framer agencies | Recommended (lead-form monitoring), ~15 hrs/week | Recommended, full-time |
|---|---|---|---|---|---|---|---|
| $1k | No verified base rate | 20% | 15% | 20% | 10% | 35% | 50% |
| $3k | No verified base rate | 7% | 5% | 8% | 3% | 18% | 30% |
| $5k | No verified base rate | 4% | 3% | 4% | 1.5% | 11% | 19% |
| $10k | No verified base rate | 1.5% | 1% | 1.5% | 0.5% | 5% | 10% |
| $20k | No verified base rate | 0.5% | 0.5% | 0.5% | <0.2% | 2% | 4% |
| $50k | No verified base rate | <0.2% | <0.2% | <0.2% | <0.1% | <0.5% | 1% |
Alternative columns assume full-time effort. Recommended means the version set out in WHAT-TO-DO-AND-AVOID.md, with the 3 conditions met:
- direct access to care-plan agencies;
- 5 agencies paying before building;
- a 7-day reliability duty you can keep.
If any one condition is missing, multiply the recommended odds by about 0.6.
Notes on the alternatives:
- As described is a clone of Oh Dear at a lower price. You'd need ~500 customers at ~$20 for $10k, in a category whose best-known entrants took 7–8 years to get there.
- White-label for WordPress agencies is the most obvious wedge and the most occupied. WP Umbrella sells uptime, SSL, domain expiry, white-label reports, plus backups and updates, for €1.99 per site. ManageWP's uptime add-on is $1 per site. You can't win on price or bundle.
- Certificate and domain expiry for the 47-day era has a dated trigger, like other ideas in this portfolio. But the industry answer to short certificates is automation (ACME), not monitoring, and monitoring is free at small scale (Red Sift, 250 certificates). Enterprise certificate lifecycle tools (DigiCert, Sectigo, Keyfactor) own the paying end.
- Webflow / Framer agencies have the least pain: the platform hosts the site and handles SSL.
- Lead-form monitoring is the only version with a gap the leaders don't fill and a pain with a dollar value. It's still small and unproven.
How to read the ladder
- $1k–3k is realistic if 13–40 agencies add it to their care plans. Achievable with founder-led calls at limited hours, if forms really break.
- $5k–10k needs every lead-driven client on it (25+ forms per agency) and a channel that brings agencies without calls: the failures report, agency communities, a plugin-directory listing.
- $20k and above has no precedent in 24 months in this category. The chance is small enough that the plan does not aim for it.
- The odds fall fastest between $1k and $5k, where founder-led selling to people you know stops being enough.
Portfolio definitions (for comparison with other ideas)
| Tier | Definition | As described | Recommended, ~15 hrs/week | Recommended, full-time |
|---|---|---|---|---|
| Tier A (venture) | $1M ARR within 36 months, ≥70% gross margin, ≥50% month-12 logo retention | <0.1% | <0.5% | ~0.5% |
| Tier B (profitable business) | $20k+ MRR within 24 months, profitable, ≥80% gross margin, ≥70% month-3 retention | ~0.3% | ~1.5% | ~3.5% |
How this compares with the other ladder-scored ideas:
- Lowest in the portfolio at $10k and above. AccessCheck (9% / 16%) and WaiverWorks (8% / 16%) have a legal driver. This has none.
- Level with BhashaCity at $1k (35% / 50%), because B2B pricing means few customers are needed. Below it at $10k (5% / 10% against 7% / 13%), because the market is shared with dozens of tools.
Fundable in current form?
No. An uptime monitor in a market with 35+ alternatives, a $9 leader and free tiers is not investable. The form wedge is too small and unproven to raise on. See 06-fundability.md.
One-paragraph verdict
The catalog was right that this is the most crowded idea on the list, and the research made it worse: the "agency" niche it suggested is already the core market of Oh Dear, WP Umbrella and ManageWP, at prices from $1 to €4 per site. Every uptime-based wedge tested (WordPress agencies, Webflow agencies, certificate expiry) is either occupied or low-pain. The one opening is silent form failure: a site that is "up" but losing leads, which none of the leaders checks. It's a real painkiller for law firms, clinics and trades when it happens, and agencies can resell it inside care plans. But nobody knows how often it happens, and nobody has shown revenue from it. Run the day-30 failure count and the day-45 paid test. If either fails, stop, and spend the hours on a stronger idea in this portfolio.