Websites are complex systems. Over time, software updates, new integrations, content changes, and evolving security threats can gradually introduce technical issues.
Even well-built websites can develop performance problems, security risks, indexing issues, or accessibility barriers if they are not reviewed regularly.
A website health check is a structured evaluation of a website’s technical condition. It is sometimes referred to as a technical website audit because it examines the systems that keep a site secure, fast and discoverable.
In practical terms, checking the health of a website involves reviewing five key areas:
- Security
- Performance and page speed
- Accessibility
- Technical SEO
- User experience and usability
When these areas are monitored and maintained, a website is far more likely to remain stable, reliable and effective over time.
If you’d prefer an expert assessment rather than running the checks yourself, you can request a Website Health Check where we review your site’s security, performance, accessibility and SEO and provide a prioritised technical report.
What is a website health check?
A website health check (sometimes called a technical website audit) is a systematic review of a website’s underlying technology, performance, and technical configuration.
The purpose is to identify issues that could affect:
- security
- performance
- search visibility
- accessibility compliance
- user experience
The outcome of a website health check is typically a prioritised list of improvements or risks that should be addressed.
Organisations often run website health checks:
- annually
- before major redesigns
- when performance issues appear
- after platform upgrades or migrations
The five areas every website health check should examine
A thorough website health review should assess the technical foundations of the platform. These typically fall into five core categories. Part of assessing website health now includes how well content performs in AI search. See how to optimise your website for AI search.
1. Website security
Security issues are one of the most common risks affecting websites.
A health check should review indicators such as:
- SSL configuration and encryption
- login protection and authentication risks
- security headers
- outdated plugins or components
- potential malware exposure
- vulnerable third-party integrations
Even small configuration weaknesses can create opportunities for exploitation if left unaddressed.
2. Performance and page speed
Website performance has a direct impact on user experience and search visibility.
A performance review usually examines:
- page load speeds
- server response times
- asset optimisation (images, scripts, CSS)
- caching configuration
- content delivery setup
Slow websites often result from small technical inefficiencies accumulating over time, rather than a single obvious issue.
3. Accessibility
Accessibility ensures websites can be used by people with disabilities and comply with recognised standards such as WCAG.
An accessibility review typically evaluates:
- keyboard navigation
- screen reader compatibility
- colour contrast
- missing accessibility attributes
- structural markup issues
For organisations in regulated sectors, accessibility issues can also present compliance risks.
4. Technical SEO
Technical SEO ensures search engines can properly crawl, interpret and index a website.
A health check should review elements such as:
- site structure and internal linking
- indexing and sitemap configuration
- titles, meta tags and structured data
- canonical tags
- broken links
- crawl errors
Technical issues in these areas can prevent important pages from being discovered or indexed correctly.
5. User experience and usability
Even technically sound websites can struggle if navigation or layout creates friction for users.
A website health check often reviews:
- navigation clarity
- page hierarchy
- calls to action
- form usability
- mobile responsiveness
Small usability improvements can significantly improve engagement and conversion.
Signs a website may need a health check
Many website issues develop gradually and are not immediately visible.
Common indicators that a website health check may be useful include:
- pages loading slowly
- declining search visibility
- unexplained technical errors
- accessibility concerns
- outdated software components
- difficulty managing content or updates
Regular technical reviews help organisations identify problems early before they impact users or search performance.
Automated scans vs expert website audits
Many automated tools can scan websites and identify surface-level issues.
These tools are useful for identifying obvious technical problems, but they often lack context and prioritisation.
An expert-led website health check typically combines:
- automated analysis tools
- manual review
- technical interpretation
- prioritised recommendations
This approach helps organisations focus on the most meaningful improvements, rather than long lists of automated warnings.
Running a professional website health check
For organisations managing important websites or digital platforms, a professional health check can provide a clearer picture of technical risks and improvement opportunities.
At Mainstay Digital, we run a Website Health Check that reviews security, performance, accessibility, SEO and usability across your site.
The result is a clear technical report outlining:
- risks
- improvement opportunities
- recommended next steps
If you’d like to understand the current condition of your website, you can request a free Website Health Check here.
Summary
Checking the health of a website involves reviewing the key technical systems that support its reliability and performance.
A structured website health check typically examines:
- security risks
- performance and page speed
- accessibility compliance
- technical SEO
- usability and navigation
Regular health checks help organisations maintain stable, secure and effective websites as technologies evolve. Maintaining website health over time usually involves ongoing monitoring and updates. Our guide on what website maintenance actually involves explains the ongoing work required to keep websites secure and reliable. Many organisations combine periodic technical audits with ongoing website maintenance to keep platforms secure, updated and performing reliably.
FAQs
Many organisations run a website health check once per year. More complex websites may benefit from more frequent technical reviews, particularly after platform upgrades, major content changes or infrastructure updates.
The terms are often used interchangeably. A website health check generally refers to a technical review of a website’s security, performance, accessibility, SEO and usability.
Automated tools can identify certain technical issues, but they often lack context and prioritisation. Many organisations combine automated scans with expert technical review to obtain a clearer picture of website health.
A website health report typically includes findings across security, performance, accessibility, SEO and usability, along with recommended actions to improve the site’s stability and effectiveness.
