Website audit
Website Maintenance Checklist: 20 Tasks to Run Monthly
August 23, 20267 min readBy Prospetra Team
Websites quietly rot: certificates expire, plugins go unpatched, content goes stale, and security holes open up — even when nothing seems wrong. A website that worked in January can fail by June. The fix isn't expensive or complicated; it's a routine. Here's a website maintenance checklist of 20 tasks, split into monthly and quarterly, that keeps your site fast, secure, and healthy.
Why regular maintenance matters
Every month your site doesn't get maintained, risk compounds. A missed plugin update is how sites get hacked. An expired SSL certificate is how visitors see a scary browser warning. Outdated content is how a site that once ranked quietly drops to page five. Maintenance is the cheapest insurance your website has — a few hours a month prevents the emergencies that cost far more later.
Monthly maintenance tasks
These take under an hour a month and catch most problems before they become crises.
| Task | Why it matters | How to do it |
|---|---|---|
| Back up your site and database | If your site breaks or gets hacked, the backup is your recovery. | Run a full backup (files + database) and store a copy off-site. |
| Update the CMS, plugins, and themes | Outdated software is the #1 hack vector. | Apply updates, then test the site still works. |
| Check for malware and blacklist status | A flagged domain loses traffic and trust. | Run a security scan and check the major blocklists. |
| Verify your SSL certificate is valid | An expired certificate shows a security warning. | Confirm the certificate is active and auto-renewing. |
| Test forms and checkout | Broken forms silently kill conversions. | Submit each form and confirm you receive the email/lead. |
| Check for broken links | Broken links hurt UX and waste crawl budget. | Run a crawler and fix or redirect 404s. |
| Confirm your sitemap is current | A stale sitemap delays discovery of new pages. | Regenerate and resubmit the sitemap to search consoles. |
| Review analytics for traffic drops | A sudden drop is an early-warning sign. | Compare this month's sessions to last month's. |
| Check page speed | Speed is a ranking and conversion factor. | Re-run a speed test on your money pages. |
| Confirm contact details are current | Outdated contact info loses you business. | Check email, phone, and address on every page. |
Quarterly maintenance tasks
These are deeper checks that keep the site healthy over the long term.
| Task | Why it matters | How to do it |
|---|---|---|
| Audit content freshness | Stale content signals neglect to users and search engines. | Refresh pages that should change and remove outdated claims. |
| Review SEO fundamentals | SEO decays without attention. | Check title tags, meta descriptions, and indexation in Search Console. |
| Review accessibility | New code can introduce barriers. | Run an automated accessibility scan. |
| Consolidate thin or duplicate pages | Duplicate pages cannibalize each other. | Merge or remove low-value pages. |
| Check software for end-of-life | An unsupported platform is a security risk. | Look for CMS/platform updates or announced end-of-life. |
| Test on a new device/browser | The web moves; your site should keep up. | Load key pages on a recent phone and desktop browser. |
| Check forms deliverability and spam | Forms can break silently or fill with spam. | Review form submissions and spam filtering. |
| Confirm your DNS and email records | Misconfigured DNS breaks email and domain tools. | Verify MX, SPF, DKIM, and DMARC records. |
| Review third-party scripts | Unused trackers cost speed and privacy. | Remove scripts that no longer add value. |
| Run a full website audit | The deepest check catches what monthly tasks miss. | Run a scored audit covering SEO, speed, accessibility, and security. |
What happens if you skip maintenance
The failure modes are predictable and expensive: a hacked site (cleanup plus lost trust), a certificate lapse (every visitor sees a warning), a broken checkout (silent revenue loss), and a slow, stale site that stops ranking. Each one takes longer and costs more to fix than the monthly routine that would have prevented it.
Make it a routine, not a project
Book one hour a month in your calendar, use this checklist as your template, and log what you did. If running it yourself feels like a burden, that's exactly what a paid maintenance plan is for — but doing it yourself monthly is still far better than not doing it at all.
Start with a baseline so you can measure: a free scored audit of your current site across SEO, speed, accessibility, and security tells you where you stand today. Then keep the 47-point website audit checklist handy for the deeper annual pass, and track your website health score as your early-warning gauge.
Frequently asked questions
What is a website maintenance checklist?+
A list of regular tasks that keep a site fast, secure, and ranking — backups, updates, security checks, broken links, forms, and content freshness. This guide splits 20 tasks into monthly and quarterly buckets.
How often should I maintain my website?+
Light checks monthly (backups, updates, forms, speed, analytics) and deeper checks quarterly (content, SEO, accessibility, full audit). Under an hour a month prevents most emergencies.
Why is website maintenance important?+
Sites quietly fail: certificates expire, plugins go unpatched, content goes stale, and security holes open. Regular maintenance is the cheapest insurance and prevents expensive emergencies later.