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What to include in an SEO maintenance retainer

What to include in an SEO maintenance retainer

An SEO maintenance retainer should cover four things: monitoring of the signals that can break overnight, a fixed set of monthly technical checks, a short report, and a written promise about how fast you respond when something goes wrong. The list of what it does not cover matters just as much, because that is where most retainer arguments start.

This is written for freelancers and small agencies who have finished a project (a migration, an audit, a rebuild) and want to keep looking after the site every month without it turning into unlimited free work.

Monitoring that runs without you

Monitoring is what separates a maintenance retainer from "call me if something breaks". The client pays you to notice problems before they do. On every site, it is sensible to watch:

Name these in the agreement. "We monitor your website" promises nothing in particular. A list of signals tells the client what is covered and tells you what you are accountable for. Say how often each one is checked, too: a check every few minutes and a look once a week are different services.

A short monthly checklist

Some checks are not worth automating, or cannot be automated. Put a short monthly list in the retainer and run it every month:

  1. Search Console, Page indexing report: new reasons under "Why pages aren't indexed" and sudden jumps.
  2. Search Console, Core Web Vitals, Manual actions and Security issues.
  3. Pending CMS, plugin or theme updates, and who applies them.
  4. A crawl with your usual crawler, if the site is big enough to need one.
  5. A look at the pages that bring in the most organic traffic.

Response times, and what you need from the client

This is the clause clients remember. Separate acknowledging a problem from fixing it, and define your working hours. As an example only, adapt it to your capacity: critical issues acknowledged within four working hours, everything else by the next working day, fixes under an agreed time included, larger work quoted separately.

Define "critical" with examples (site down, whole site on noindex, checkout broken), otherwise every issue becomes critical.

Then write down what you need in return: admin access to the CMS, a user in Search Console and GA4, and notice before redesigns, migrations or big plugin changes. Releases nobody mentioned are a frequent source of incidents, so state that repairing unannounced changes by third parties is billed separately.

What the retainer excludes

Be plain about it:

Several of these can become add-ons. Listing them as excluded is not refusing the work, it just makes each one visible as its own line.

Reporting and explaining it to the client

A retainer that produces nothing visible tends to get cancelled in a quiet quarter. Send a short monthly note even when nothing broke: what you monitored, what changed, what you did, and what is coming up, such as renewals or planned releases. Website monitoring client reports covers the format, and when traffic does fall, how to explain an SEO traffic drop to a client helps with that conversation.

When you pitch it, talk about what it prevents: hearing about a deindexed site from a sales drop, a browser warning after a certificate expired, a tracking tag missing during a campaign. Show the list of monitored signals and one real alert, and let the scope document do the rest.

Pricing the monitoring layer

The price is yours to set. Count your tool costs per site and the hours the checklist and report really take, then add room for incidents. Website monitoring for freelancers goes through that maths.

Deltio can cover the monitoring part: uptime every 10 minutes, SSL and domain expiry, daily sitemap snapshots, robots.txt, SEO tags, marketing tags and the cookie banner, with alerts by email or Slack. Starter is £24 a month, or £20 billed annually, and you can try it free for 14 days.

Frequently asked questions

How is an SEO maintenance retainer different from an SEO growth retainer?
A maintenance retainer protects what the site already has: it catches technical problems, tracking losses and expiries before they cost traffic. A growth retainer adds work meant to increase traffic, such as new content and link building. Many freelancers sell maintenance on its own and quote growth work separately.
Should an SEO maintenance retainer have a minimum term?
It is a business choice, not a rule. A short minimum term gives you time to set up monitoring and fix the first round of issues before the client judges the value. After that, a rolling monthly agreement with a notice period is common and easy for clients to accept.
What happens to hours the client does not use?
Decide this before signing and write it down. Many maintenance retainers sell coverage rather than a block of hours, so unused time does not roll over. If you do sell hours, set a limit on how many can carry into the next month.
Who should pay for monitoring tools in a retainer?
Either is fine as long as the agreement says which. Including tools in your fee keeps the invoice simple and lets you use one account across clients. Passing costs through makes sense for client-specific tools, such as a paid plugin licence that belongs to their site.