When a Shopify store goes down,
your client counts lost sales.
Custom domain SSL provisioning fails silently. Klaviyo goes down during a campaign. A checkout subdomain loses its DNS record after a store migration. Merlonix catches these before the abandoned cart emails start piling up.
No credit card either way — start free, or trial the full workspace.
- Check cadence (Agency)
- 1 min
- SSL pre-expiry alert
- 30 days
- Vendors watched
- 11
- DNS change to alert
- < 10 min
Where Shopify agencies get surprised
Revenue-critical infrastructure your ping monitor cannot reach.
An HTTP 200 from a Shopify storefront tells you the CDN responded. It tells you nothing about SSL validity on the custom domain, DNS integrity on the checkout subdomain, or whether Klaviyo can deliver the abandoned cart flow that recovers 15% of lost revenue.
Custom domain SSL failure
Shopify SSL provisioning breaks quietly
When a client moves to a custom domain, Shopify provisions SSL automatically — until it doesn't. CDN config conflicts, CAA record restrictions, and third-party DNS setups all cause provisioning to fail without any error in the Shopify admin. The store serves a browser SSL warning while the dashboard shows everything green.
App ecosystem dependency
Third-party app outages tank the store
Shopify stores run on Klaviyo, ReCharge, Gorgias, Yotpo, and a dozen other vendors. When any of them has a partial outage, cart recovery emails stop, subscriptions fail to process, and support queues spike. Merlonix monitors vendor status pages so you're informed before the client's customers start complaining.
Migration residue
Checkout subdomains lose DNS after moves
Shopify Plus stores use custom checkout subdomains. Storefront migrations, domain transfers, and DNS provider switches regularly orphan these records. A checkout that returns NXDOMAIN is indistinguishable from an uptime check at the HTTP level — but every checkout attempt fails.
How it works
One account. Every Shopify client. One alert flow.
Merlonix is designed for agencies managing a portfolio of Shopify stores. Add a client once, watch everything from there, and only get alerted when something actually needs your attention.
01
Verify each client store domain
Add a DNS TXT record or .well-known file to confirm you are authorized to monitor the domain. One attestation per store — covers the primary domain and all subdomains you add to it.
02
SSL and DNS checked every 5 minutes
Your DNS records are validated against live resolution on each check. SSL certificates are validated end-to-end — issuer, chain completeness, and expiry date. Shopify's CDN sitting in front of the cert doesn't hide the underlying cert state.
03
Vendor status monitored continuously
Shopify, Klaviyo, Stripe, ReCharge, and eight other common Shopify app vendors are polled on a shared schedule. When a vendor incident opens, you get a notification before it reaches the client. When it resolves, you get that too.
04
Alerts land in Slack or email
Alerts include the store, the check type, and the current state. No login to triage. No separate dashboard per client. Everything surfaces in the same channel your team already watches.
What the coverage means for Shopify agencies
Monitoring calibrated to e-commerce risk.
Shopify agencies carry more reputational risk per incident than agencies on brochure sites. A 20-minute SSL issue during a flash sale is a client relationship event. Merlonix is built around the assumption that every minute of undetected downtime has a dollar figure attached.
30 days
SSL warning lead time — enough to renew before a single customer sees a browser warning
5 min
Check cadence on Agency plan — fast enough to catch checkout failures before campaign traffic peaks
11
Vendor status pages monitored — including Shopify, Stripe, Klaviyo, and ReCharge
250
Maximum monitored assets on Agency plan — enough for a full portfolio of Shopify Plus stores
Pricing
One flat fee. Every store in the portfolio.
No per-domain billing. No per-incident charges. Pick the tier that fits your client count and scale without unexpected costs.
Starter
For freelancers managing a small Shopify client list.
$19/ month
- 15 monitored assets
- 3 seats
- 5 min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Team
For agencies with a growing Shopify client roster.
$79/ month
- 60 monitored assets
- 10 seats
- 1 min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Agency
For agencies running revenue-critical Shopify Plus stores.
$199/ month
- 250 monitored assets
- Unlimited seats
- 1 min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Compliance
For regulated-vertical teams that need continuous, audit-ready evidence.
$699/ month
- 500 monitored assets
- Unlimited seats
- 1 min check cadence
- SSL + DNS + vendor monitoring
- Email + Slack alerts
Beyond uptime
More than a 200 OK on every client site
The same account also watches the infrastructure and reputation layers a standard uptime check never reaches — each a live check you can turn on.
Turn monitoring into revenue
Resell client-ready reports as your own
Monitoring doesn’t have to be a cost line. Package the branded report and white-label status page as a deliverable in your retainer — the tooling underneath stays invisible, so to the client the work is yours.
Reports under your brand
Hand each client a polished SSL, DNS, and security report carrying your agency’s name and logo — not ours.
Status pages on their domain
Publish a live status page at status.theirbrand.com with automatic TLS and no “Powered by Merlonix” badge.
Your margin to keep
You pay one add-on cost and package it into the retainer you already bill. The markup — and the margin — are yours.
Common questions
Frequently asked questions
Do I need DNS or registrar access to my clients’ domains to monitor them?
No. Merlonix monitors from the outside in — it probes each domain’s public SSL certificate, DNS records, WHOIS/registration data, and HTTP responses the same way a browser or DNS resolver would. You add an asset by its hostname; no access to the client’s registrar, DNS provider, or servers is required.
What does Merlonix actually check on each site?
Every monitored asset gets continuous SSL-certificate (expiry, issuer, and chain changes), DNS-record, domain-registration/expiry, and uptime monitoring by default. You can also enable infrastructure and reputation checks a standard uptime monitor never reaches — security headers, DNSSEC/DANE, domain-hijack/registrar-lock, blocklist, and cron/heartbeat monitoring — each a live check you turn on per asset.
How often does it check, and how do alerts reach me?
Checks run on your plan’s cadence — as often as every 1 min on Team and above, and every 5 min on Starter. When a certificate, DNS record, registration, or response changes, you get an alert by email and Slack. Alerts fire on real state changes between definitive checks, not on a transient blip.
How much does it cost, and is there a free option?
Yes — there is a free $0 plan (no credit card) to watch a small number of assets, and paid plans start at $19/mo (Starter). You can also start a 14-day full-workspace trial with no card. See the pricing grid above for the assets, seats, and check cadence on each tier.
Know before the abandoned carts do.
Add your first Shopify client domain in under two minutes. Merlonix starts watching immediately — SSL, DNS, and all 11 vendor status feeds. 14-day trial, no card required.