When HubSpot degrades,
your client calls you.
Marketing automation agencies operate at the intersection of client data and third-party platforms. When HubSpot has a partial outage, Mailchimp batches stall, or a custom click-through domain loses its SSL certificate, the failure routes directly to your inbox. Merlonix monitors the platforms and infrastructure so you know first.
No credit card for the trial. Cancel any time.
- Upstream vendors watched
- 11
- Vendor status check cadence
- 5 min
- SSL pre-expiry alert
- 30 days
- Independent DNS resolvers
- 3
Where marketing automation agencies get caught out
Three failure modes at the intersection of platforms and domains.
Marketing automation agencies own the configuration layer — vendor credentials, domain settings, DNS records for email auth — but not the platforms themselves. When anything in that stack fails, the failure routes to you even when the root cause is upstream.
Platform concentration
Vendor outages stall campaigns mid-flight
A HubSpot partial outage stalls workflow triggers. A Mailchimp incident holds batch sends in queue. An ActiveCampaign degradation breaks form submissions. These are not rare events — every major marketing automation platform has multiple partial outages per quarter. Merlonix monitors all of them and alerts your team within minutes.
Custom domain SSL
Click-through URLs lose certificates without warning
Marketing automation agencies manage custom sending domains, landing page domains, and click-through redirect domains. SSL certificates on these domains expire or break when DNS changes are made — and a browser warning on a campaign link breaks trust instantly. A ping monitor shows 200 OK until the first visitor gets the error.
Email deliverability
SPF and DKIM drift silently after domain changes
SPF records, DKIM keys, and DMARC policies are set once and forgotten. When a client changes email providers, rebrands a domain, or updates DNS for any reason, these records can be overwritten or dropped. The result is deliverability failures that take days to diagnose. Merlonix diffs DNS against expected records and alerts on TXT record changes immediately.
How it works
One setup per client. Vendor monitoring included on every plan.
Merlonix is designed for agencies managing many client marketing stacks — one account, every domain and vendor, one alert flow that only fires when something actually needs attention.
01
Add your client domains and watch vendors
Verify domain ownership with a DNS TXT record or .well-known file — one attestation per domain. Vendor monitoring (HubSpot, Mailchimp, Stripe, Cloudflare, and 7 more) is automatic on every plan. No additional setup required.
02
SSL, DNS, and vendor status checked every 5 minutes
Three independent DNS resolvers confirm expected records on every check, including TXT records for SPF and DKIM. SSL is validated end-to-end. All 11 upstream vendor status pages are polled globally and diffed against the last known state.
03
AI classifies changes before alerting
DNS propagation delays and transient vendor API hiccups get classified as noise. Real incidents — SPF record dropped, SSL expired, HubSpot in partial_outage — reach your team. False positives are filtered before they reach your inbox.
04
Alert lands in Slack or email within minutes
Alerts include platform name, incident type, severity, and recommended action. For vendor outages: the affected services and current status. For DNS/SSL: the specific record or certificate field that changed. No login required to triage.
What the numbers mean for marketing automation agencies
Monitoring that covers the full marketing stack.
Marketing automation agencies don't control the platforms — they configure them. That makes vendor status visibility and domain health monitoring the two highest-leverage things you can add to your operational stack without touching client systems.
11 vendors
Upstream platforms monitored — including HubSpot, Mailchimp, Stripe, Cloudflare, Slack, and more
5 min
Vendor status check cadence — faster than most marketing automation platform status pages update
30 days
SSL expiry warning lead time — enough runway to fix before a campaign link triggers a browser warning
200 assets
Maximum monitored domains on the Agency plan — covers sending domains, landing pages, and redirect URLs
Pricing
Flat monthly fee. Every vendor and domain included.
No per-vendor add-ons. No per-domain charges. Vendor monitoring is included on every plan — you pay for the tier, not the breadth.
Starter
For solo marketing automation consultants 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 agencies managing multiple client automation stacks.
$79/ month
- 50 monitored assets
- 5 seats
- 10-min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Agency
For agencies running large-scale multi-client automation programs.
$199/ month
- 200 monitored assets
- 15 seats
- 5-min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Know before the client calls.
Add your first client domain and start watching your vendor stack in under two minutes. 14-day trial, no card required.