Done-for-you investigation, built into your maintenance subscription

Stop hearing
"the site is down" from your clients.

Be the first to detect issues — and let our engineers handle root-cause investigation. Incidents detected at night land on your desk the next business morning, with a full root-cause report. Monthly reports and white-label status pages, all turned into a single operation. Built for agencies running 10–50 client retainers.

  • No credit card
  • 5-minute setup
  • Full white-label from Standard
Miterl operator's own sites (last 30 days, illustrative)
99.98%
Uptime
Last 30 days / averaged across all monitors
12min
Mean time to recovery
From detection to resolved
1
Incidents
Major incidents in the last 30 days
Miterl is run by FUNBREW Inc. — we monitor every one of our own products with Miterl itself. The same report format attaches to your monthly client briefings.

Are clients telling you the site is down
before you find out?

Operations break down as you add accounts. Three patterns we see in every web agency.

“Hey, your site is down again.”
Clients tell you first
By the time you know, trust has already taken a small hit. It quietly hurts your renewal pipeline too.
“Cause? Let me check…”
You investigate every outage yourself
Wake up to alerts, dig through logs, write a status update to the client — every time, on your engineers’ personal time.
“What exactly are we paying you for?”
Hard to justify retainer fees
Charging a monthly fee with nothing visible to show invites constant pricing pressure and chips away your margin.

Monitoring + investigation + branding,
turned into one operation.

Everything an agency needs in a single tool. A sellable maintenance service starts running by tomorrow.

01

When something breaks, you get a root-cause report

Plenty of tools watch your sites — only Miterl runs the investigation that follows. Our investigation desk is open weekdays 10:00–19:00 JST: Standard responds within 4 business hours, Pro within 2. We deliver log review, root-cause and remediation as a written report. Incidents detected at night or on weekends are picked up the next business morning.

  • Weekdays 10:00–19:00 JST. First response within 4 business hours (Standard) / 2 business hours (Pro)
  • Pro adds NDA-backed access to server-internal logs
  • Out of monthly cases? Add spot investigations from ¥30,000 each
02

Organise per client and ship under your own brand

Group monitors, alerts and reports per account. Status pages and email notifications carry your logo and brand colour. From Standard you can hide the “Powered by Miterl” mark and publish on a custom domain — to your clients, it’s your maintenance service.

  • Per-client separation of monitors, alerts and reports
  • Full white-label from Standard (logo, colours, custom domain, “Powered by” off)
  • Member roles: Owner / Admin / Member / Viewer
03

Catch issues early — instant Slack, email, Chatwork alerts

8 monitor types: HTTP / HTTPS / Ping / SSL / WHOIS and more. SSL expiry detected automatically; late-night incidents reach the team in seconds.

  • 1–5 minute intervals, multi-region checks
  • Slack, email, Chatwork, LINE, Webhook
  • Maintenance windows suppress alerts during planned work
04

Make retainer value visible with monthly reports

99.98% uptime, 1 incident, 12-minute average recovery — auto-generated PDF reports you can attach to monthly client communication.

  • Per-client uptime and incident summary, automated
  • Distribute as PDF or as a shared URL
  • Use as proof for renewals and plan upsells
05

Pre-launch audits, release-mode monitoring, and on-call drills

Capabilities other monitoring tools don’t bundle: catch delivery mistakes, monitor releases tightly, rehearse your on-call before real incidents.

  • Pre-launch audit: catch leftover noindex and broken links before going live
  • Release mode: high-frequency monitoring for the 30 minutes after deploy
  • On-call drill: simulated incidents to rehearse your team’s response
Want to see it in action

Walk through the actual workflow in three steps

“First use → Operations → Power use” — a 3-step guide covering everything from a 5-minute first monitor to a half-day power-user setup.

Open the practical guide →
No signup / about a 7-minute read

Pricing built for agencies running 10–50 client retainers

Standard fits agencies running 10–50 maintenance clients. Pro is for 50+ clients or anyone who needs 1-minute intervals and SLA support. Free is for one-off checks.

Free
¥0/mo
1–3 accounts to try things out
  • Up to 5 monitors / 5-minute interval
  • Email notifications
  • 1 status page
Try it free
Recommended
Standard
¥19,800/mo
Agencies running 10–50 maintenance clients (5–30 staff)
  • 100 monitors / 3-minute interval
  • Slack / Chatwork / email notifications
  • Full white-label + custom domain + monthly reports
  • Investigation included (1/mo, weekdays 10:00–19:00 JST, first response within 4 business hours)
Start with Standard
Pro
¥49,800/mo
50+ clients / 1-min interval / 2h-response SLA / NDA-backed server access
  • 500 monitors / 1-minute interval
  • LINE / Webhook / SMS added
  • 3 investigations / mo + NDA server-internal review
  • First response within 2 business hours / priority support
Start with Pro

Annual plans save 2 months / change plans anytime

Frequently asked

Common questions from web agencies. See the practical guide and the full FAQ for more.

Can I separate monitors and alerts per client?

Yes. Client groups isolate monitoring per account, with per-client alert routing (e.g. Client A → Slack #client-a, Client B → [email protected]). Monthly reports are also generated per client.

Which plan includes white-label?

Full white-label is available from Standard: logo, brand colour, hiding the “Powered by Miterl” mark, and publishing on a custom domain (e.g. status.client.com). Pro adds extra investigation cases and NDA-backed server-internal access.

What does the incident investigation cover?

Log review, root-cause identification and a remediation report. Our investigation desk is open weekdays 10:00–19:00 JST. Standard's first response is within 4 business hours, Pro's within 2. Standard includes 1 case per month, Pro 3. Pro covers NDA-bound server-internal logs and DB state too. Incidents detected at night or on weekends are picked up the next business morning. Always-on out-of-hours response is available as a separate option — please get in touch.

Can I run pre-launch checks for WordPress sites?

Yes. The pre-launch audit catches leftover noindex, blocking robots.txt, broken internal links, and missing meta tags in a single run. It can be invoked via API from CI/CD too.

Who actually runs Miterl?

FUNBREW Inc. We monitor every one of our own products with Miterl itself — the on-call drills, pre-launch audits and reports we sell are all features we operate on ourselves before shipping.

Incidents happen at night and on weekends. Do you respond outside business hours?

Monitoring (the probes) runs 24/7 and pushes alerts to Slack / email / Chatwork the moment something breaks. The human investigation desk is open weekdays 10:00–19:00 JST. Incidents detected outside those hours are picked up the next business morning. Always-on out-of-hours response is available as a separate option — please get in touch.

Stop hearing “the site is down” from your clients.

No credit card, 5 minutes to set up. Start with a single account.

Free plan is unlimited / Standard includes a 14-day trial