Your WordPress clients' sites
break in ways pings miss.
A site can return 200 OK and still have an expired SSL cert. A DNS migration can succeed and still drop MX records for client email. Merlonix watches the layer beneath the uptime check — so you know before the client does.
No credit card for the trial. Cancel any time.
- Check cadence (Agency)
- 5 min
- SSL pre-expiry alert
- 30 days
- Vendors watched
- 11
- Independent DNS resolvers
- 3
Where WordPress agencies get surprised
Three failure modes your uptime monitor cannot see.
Uptime monitors check HTTP response codes. SSL expiry, DNS drift, and vendor outages all fail at a different layer — and they're the failures that generate client calls, not silent 404s.
Let's Encrypt failure
SSL renewals silently break
Let's Encrypt auto-renewal depends on web server config, cron jobs, and challenge routes that WordPress plugins can accidentally block. The cert lapses. The site stays green on your ping monitor until a visitor sees the browser warning.
Migration residue
DNS drift after host changes
Every WordPress migration touches DNS. A record, MX, SPF, CNAME for staging — something almost always lingers or gets dropped. Merlonix diffs your expected DNS state against live resolvers and alerts when they diverge.
WooCommerce dependency
Payment vendor outages hit revenue
A WooCommerce store is only as reliable as its payment gateway, shipping provider, and email service. When Stripe has a partial outage or Mailchimp goes down, your client stops selling. Merlonix monitors vendor status pages so you know before they call.
How it works
Set it up once per client. Watch everything from there.
Merlonix is designed for agencies managing many WordPress clients — one account, every domain, one alert flow that only fires when something actually needs attention.
01
Add your client domains
Verify ownership with a DNS TXT record or .well-known file — one attestation per client. Takes under two minutes per domain. Then Merlonix owns the watching from there.
02
SSL and DNS check every 5 minutes
Three independent DNS resolvers confirm your expected records on every check. SSL chains are validated end-to-end — expiry date, issuer, chain completeness. Alerts at 30 days, 14 days, 7 days, and immediately on expiry.
03
AI filters noise before alerting
Transient DNS propagation delays and resolver disagreements get classified as noise. Real expiry threats and genuine DNS changes reach your team. You stop ignoring alerts because every one that fires matters.
04
Alert lands in Slack or email
Alerts include domain, check type, current state, and recommended action. No login required to triage. No dashboard to babysit. The information arrives where your team already is.
What the numbers mean for WordPress agencies
Monitoring that fits the way agencies actually work.
WordPress agencies don't have a dedicated ops team. You have developers who also manage hosting. Merlonix is built around that constraint — minimal setup, maximum signal, zero dashboards to check between client calls.
30 days
SSL expiry warning lead time — enough runway to renew without client impact
< 10 min
Time from DNS change to alert — before Google re-crawls and flags the issue
11 vendors
Upstream services monitored per account — Stripe, Mailchimp, Cloudflare, and more
200 assets
Maximum monitored domains on the Agency plan — enough for a full client roster
Pricing
Flat monthly fee. Every client domain included.
No per-domain charges. No per-alert fees. Pick the tier that fits your client count and grow without the billing surprises.
Starter
For solo WordPress developers watching a handful of clients.
$29/ month
- 10 monitored assets
- 1 seat
- 15-min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Team
For growing agencies with multiple WordPress developers.
$79/ month
- 50 monitored assets
- 5 seats
- 10-min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Agency
For agencies with a full client roster of WordPress sites.
$199/ month
- 200 monitored assets
- 15 seats
- 5-min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Stop finding out from clients.
Add your first WordPress client domain in under two minutes. The first SSL or DNS alert tells you whether monitoring was worth it — usually within the first week. 14-day trial, no card required.