The monitoring engine
behind your website care plan
Daily uptime, Lighthouse, and visual checks run on every client site, then a branded report goes out on your schedule. SiteLetter is the half of the care plan that proves to the client it is worth paying for. $5/site flat.
A care plan sells confidence, not maintenance
The work in a care plan is mostly invisible. Updates that did not break anything. An outage caught and fixed before the client noticed. A certificate renewed on time. That invisibility is the problem: a client who never sees the work starts to wonder what the monthly fee is for, and that is where retainers quietly churn.
SiteLetter makes the work visible. It runs the daily health checks behind the plan, then sends a branded report that shows the client exactly what stayed healthy and what you caught. The monitoring is the substance. The report is the proof. Both come in one tool, priced per site so the margin math stays simple.
SiteLetter is a layer, not a replacement
A full care plan has two halves. SiteLetter owns the monitoring and reporting half. Your maintenance tool owns the inside-the-site half. They run side by side, and most agencies keep both.
The outside view and the client report
- Uptime monitoring on every page, cross-region verified
- Daily Google Lighthouse on every monitored page
- AI visual regression, classified day over day
- SSL certificate and domain expiry alerts
- Broken-asset and broken-image checks
- The branded client report, on your schedule
The inside-the-site work
- WordPress core and plugin updates
- Scheduled backups and one-click restore
- Malware scanning and removal
- Database optimization
- Staging environments and update testing
- Platform-specific security hardening
Running WordPress sites? SiteLetter pairs with the maintenance tool you already use. See it next to WP Umbrella and ManageWP.
What runs behind every care plan
Six checks on every client site, every day, across up to 15 pages per site. These are the line items your report is built from.
Uptime, around the clock
The homepage is checked every minute, inner pages every 15. A down result is confirmed across 3 regions before an alert fires, so a regional blip never becomes a false alarm to your client.
Performance, scored daily
Google Lighthouse runs on every monitored page every day, with caches pre-warmed so the Performance, Accessibility, Best Practices, and SEO scores are a real trend, not a random walk between runs.
Visual changes, caught automatically
A daily screenshot of every page is diffed against yesterday. An AI classifier dismisses cosmetic noise like rotating banners, logs intentional content edits in the next report, and flags real breakage within the hour. Set a visual-change rule and that flag reaches your inbox too.
SSL and domain expiry
Certificate and domain expiry are tracked per site, and you can be alerted on whichever days before the date you pick. The single cheapest outage to prevent, and the most embarrassing one to explain to a client after the fact.
Broken assets
Missing images, broken links, and failed assets are checked daily on every monitored page, so a silent breakage gets to you before it gets to the client browsing their own site.
The report that proves it
All of it rolls into one branded email on your schedule. Your logo, your colors, no SiteLetter mark in the report. The artifact that turns invisible monitoring into a retainer the client renews without a second thought.
Adding a client site is one step
A care plan is only profitable if it does not eat your time to run. Adding a site is a single URL, and the one thing you decide yourself you decide once, for every client.
- 1
Add the domain
SiteLetter fetches the sitemap and picks the 15 most important pages, ranked by depth, sitemap priority, and recency.
- 2
Monitoring turns on by itself
Every service is enabled and the weekly and monthly report templates are pre-built. There is no per-check configuration to work through first.
- 3
Add recipients and brand it
Drop in the client's email, set the logo and colors, pick a frequency. The first report goes out on schedule.
- 4
Choose what you get told about
A new account has no alert rules, so nothing reaches you until you set one. You do it once at agency level, and every client and every site inherits it, including the ones you add later.
One flat price per site
$5 per site per month covers all 15 pages and every check. No per-feature tiers to price into your retainer, no surprise overages as a client's site grows. Fold it into your care-plan price and the margin is the same on every site you run.
Website care plan FAQ
A website care plan is the recurring service an agency sells to keep a client's site healthy: monitoring, maintenance, backups, security, and a regular report that shows the work is happening. It is how agencies turn one-off builds into monthly recurring revenue. SiteLetter is the monitoring and client-reporting half of that plan. It runs daily health checks and sends the branded report so the client can see what they are paying for.
No, it sits alongside it. A maintenance tool like ManageWP, WP Umbrella, or MainWP handles WordPress core and plugin updates, backups, and malware scans from inside the site. SiteLetter handles the outside view: uptime, Lighthouse performance, visual regression, SSL and domain expiry, and broken assets, then packages all of it into the client-facing report those tools do not send. Most agencies run both.
Yes. SiteLetter is platform-agnostic. It monitors WordPress, Webflow, Shopify, Squarespace, Framer, and custom builds the same way, because every check runs externally against the live URL. If your care plan covers a mix of stacks, one tool reports on all of them.
Every site covers up to 15 pages, auto-selected from the sitemap. Each page gets daily Google Lighthouse audits (performance, accessibility, best practices, SEO), daily AI-classified visual regression, and broken-asset checks. The homepage is uptime-checked every minute, inner pages every 15 minutes. SSL certificate and domain expiry are tracked at the hostname level. All of it rolls up into the scheduled client report.
A branded email report on the schedule you set: weekly, bi-weekly, monthly, or quarterly. Your logo, your brand color, your reply-to address, and an org-level white-label toggle that hides the SiteLetter name in the report. New external recipients confirm their email once with a one-click link; team members skip that step. The client reads the report in their inbox with no login required.
SiteLetter costs $5 per site per month flat, with no per-feature add-ons. Agencies typically fold that into a care-plan price that also covers their time, maintenance tooling, and support, then bill the client a monthly retainer well above raw tool cost. Because pricing is one flat number per site, the margin math stays simple no matter how many pages a site has.
Add a domain and the monitoring side sets itself up: SiteLetter fetches the sitemap, picks the 15 most important pages, turns on every monitoring service, and pre-builds your weekly and monthly report templates. Two things are yours to decide. Recipients, per client. And alert rules, which a new account does not have any of, so nothing reaches you until you write one. You choose what is worth an alert once at agency level, across uptime, SSL and domain expiry, Lighthouse scores, visual changes, and broken assets, and every client and every site inherits that, including the sites you add later. There is no per-check configuration to work through before the first report goes out.
Still have questions? Contact us
Set up your care-plan reporting once.
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SiteLetter is the kind of tool you forget you're using, until your client thanks you for the report you didn't write.
- ✓ 2-minute setup. Add a URL. SiteLetter auto-discovers pages, starts monitoring, schedules reports.
- ✓ No scripts to install. SiteLetter monitors from the outside, like a real visitor.
- ✓ Cancel anytime. No credit card to start, no contract.