Technical SEO for Accounting Websites: Beginner's Guide

Technical SEO is the process of making sure search engines can find, read, and understand your website. Unlike content or link building, it focuses on the underlying structure and health of your site rather than what you write or who links to you. For accounting firms, getting these foundations right is what allows the rest of your SEO efforts to pay off.

Many accounting practices put real effort into writing helpful content, but that content never ranks as well as it should because the website itself has problems. Google may not be able to access certain pages, pages may load too slowly for mobile users, or the site may lack a security certificate. These technical issues act as a ceiling on your search performance. No amount of good content will fully overcome a technically broken website.

What makes technical SEO different from other types of SEO

SEO is generally grouped into three areas. Content SEO covers what you write: service pages, blog articles, guides about specific tax issues, and so on. Off-page SEO covers signals from other websites, mainly links pointing to your site from authoritative sources. Technical SEO covers everything about how your website itself is built and functions.

Technical SEO does not require you to write anything or build relationships with other websites. It is about your site's infrastructure. Because of this, technical improvements often produce faster results than content or link-building work, because you are removing barriers rather than adding new signals.

Why accounting firm websites often have technical problems

Professional services websites, including accounting firms, tend to fall into one of two camps. Some are built cheaply on a generic template and never properly maintained. Others are built on older platforms that once worked well but have aged as Google's requirements have changed.

Accounting firms typically do not have an in-house web developer. The site was built once, perhaps four or five years ago, and nobody has reviewed the technical health since. Meanwhile, Google introduced mobile-first indexing, made page speed a ranking signal, updated its Core Web Vitals requirements, and began penalising sites that lack HTTPS. These changes affect sites regardless of whether the owner is aware of them.

The six pillars of technical SEO

Technical SEO can feel overwhelming, but it becomes manageable once you understand the six core areas it covers. Each pillar addresses a specific way your site can fail or succeed.

Crawlability means whether Googlebot, Google's web crawler, can find and access your pages. If your robots.txt file accidentally blocks important pages, or if your site structure makes certain pages impossible to reach via internal links, Google will simply never see that content.

Indexability means whether Google is actually storing your pages in its search index. A page can be crawlable but still excluded from the index due to a noindex tag, a duplicate content issue, or a manual action. You can check which of your pages are indexed by searching site:yourdomain.co.uk in Google.

Site speed is how quickly your pages load. Google confirmed page speed as a ranking factor in 2010 for desktop and extended it to mobile in 2018. It also affects how many visitors stay on your site: 53% of mobile users abandon a page that takes longer than three seconds to load.

Mobile-friendliness covers whether your site works properly on smartphones. Google uses the mobile version of your site for all indexing and ranking, a system called mobile-first indexing that is now fully rolled out. If your desktop site looks fine but your mobile version is broken or hard to use, your rankings suffer.

HTTPS is the secure version of the web. Google confirmed HTTPS as a lightweight ranking signal, and Chrome browsers display a "Not Secure" warning on any site that still uses HTTP. For an accounting firm handling client enquiries, running an HTTP site also raises questions about data protection under UK GDPR.

Structured data is code added to your pages that helps Google understand what they contain. For accounting firms, structured data can help Google display your business name, address, and reviews in search results, and can enable rich result formats for articles and FAQs.

Crawlability: helping Googlebot find your pages

Your robots.txt file sits at yourdomain.co.uk/robots.txt and tells search engine crawlers which pages they are allowed to visit. Most small websites can simply allow everything, but a misconfigured robots.txt file is a common cause of pages disappearing from Google.

To check yours, add /robots.txt to the end of your domain and read what is there. If you see Disallow: / under User-agent: *, your entire site is blocked from crawling. This is a critical error that needs immediate attention.

Crawlability also depends on your internal linking. If an important service page is not linked from anywhere on your site, Googlebot may never find it. Think of internal links as signposts that guide the crawler through your content.

Indexability: verifying your pages are in Google's index

Once Google can crawl a page, it needs to decide whether to index it. Certain technical signals tell Google not to index a page, such as a noindex meta tag in the page's code. These tags are sometimes added during a site build or staging process and accidentally left in place when the site goes live.

To check whether a specific page is indexed, search for it using site:yourdomain.co.uk/your-page-path in Google. If it does not appear, Google has not indexed it. Google Search Console's Coverage report gives you a more complete view across your entire site, grouping pages into indexed, excluded, and errored categories.

Pages that show as "Discovered, currently not indexed" are pages Google found but chose not to prioritise. This usually signals a quality or relevance issue rather than a technical block.

Site speed: why your load time is a business problem

A slow website loses potential clients before they ever read a word you have written. The 53% abandonment rate for pages that take over three seconds to load applies equally to someone researching local accountants on their phone at lunchtime.

You can measure your site speed for free using Google PageSpeed Insights at pagespeed.web.dev. Enter your homepage URL and it will score your site from 0 to 100 for both mobile and desktop, and highlight specific issues. A score below 50 on mobile suggests significant problems worth addressing.

The most common causes of slow accounting websites are large, uncompressed images, poorly optimised hosting, and JavaScript files that block the page from rendering while they load.

The relationship between technical health and content performance

Technical SEO and content SEO are not separate departments. Technical problems directly limit what your content can achieve. Consider this scenario: your firm has written a genuinely useful guide to the 2025/26 self-assessment deadline. Google's crawler finds the page, but it loads in six seconds on mobile, uses HTTP rather than HTTPS, and has no internal links pointing to it from other pages on your site. The content itself may be excellent, but these technical factors are suppressing its performance.

Fixing technical issues first means your content has the best possible environment in which to rank. It is the equivalent of clearing the road before asking people to drive down it.

Which technical issues to fix first

Not all technical problems carry equal weight. When prioritising, work through this order:

1. HTTPS: if your site is still on HTTP, this is your first fix. Most UK hosting providers now include free SSL certificates via Let's Encrypt. Contact your hosting provider and ask them to enable it.
2. Mobile usability: if your site is not usable on a smartphone, everything else is secondary. Use Google's Mobile-Friendly Test to identify problems.
3. Crawl blocks: check your robots.txt file and confirm you have not accidentally blocked important pages.
4. Indexation errors: check Google Search Console for pages that should be indexed but are not appearing.
5. Page speed: once the above issues are resolved, turn your attention to load times. Focus on your homepage and your most important service pages first.
6. Structured data: this adds value but is lower priority than the above. Add it once the foundations are solid.

What to ask your web developer versus what you can fix yourself

Some technical SEO tasks are straightforward for a non-technical website owner. Others genuinely require developer involvement.

You can usually handle yourself: enabling HTTPS (via your hosting control panel or a request to your host), submitting your sitemap to Google Search Console, adding your site to Search Console, and compressing images before uploading them.

Ask your web developer: fixing crawl errors identified in Search Console, implementing redirects, fixing Core Web Vitals issues related to JavaScript or CSS, adding structured data markup, and resolving mixed content errors after an HTTP to HTTPS migration.

When briefing your developer, be specific. Do not say "make the site faster." Instead, say "Google PageSpeed Insights gave our homepage a score of 38 on mobile. The top issues listed are unoptimised images and render-blocking JavaScript. Please address these two issues specifically and confirm the new score once done." Specific briefs get faster, more accurate results and make it easier to verify the work has been completed.

Key takeaways

• Technical SEO covers crawlability, indexability, site speed, mobile-friendliness, HTTPS, and structured data — these six pillars form the foundation of all other SEO work.
• Google uses the mobile version of your site for all indexing, so mobile problems directly affect your rankings even if your desktop site looks fine.
• HTTPS is both a ranking signal and a trust signal; any accounting firm still running HTTP should treat this as a priority fix.
• Use the site:yourdomain.co.uk search in Google to quickly check how many of your pages are indexed.
• Fix issues in order of impact: HTTPS and mobile usability first, then crawl errors, then speed, then structured data.
• When briefing developers, reference specific PageSpeed Insights scores and named issues rather than general instructions.

Frequently asked questions

Do I need a developer to fix technical SEO issues?

Not for everything. Enabling HTTPS through your hosting provider, uploading compressed images, and setting up Google Search Console are all tasks a non-technical website owner can complete. However, issues like fixing Core Web Vitals, implementing structured data, or resolving crawl errors usually require a developer.

How do I know if Google can see all my pages?

Search for site:yourdomain.co.uk in Google. This returns all pages from your domain currently in Google's index. For a more detailed breakdown including errors and excluded pages, use the Coverage report in Google Search Console.

Does HTTPS really affect my rankings?

Yes, but it is a lightweight factor. Its bigger impact is on user trust: Chrome marks HTTP sites as "Not Secure," which can deter potential clients from submitting enquiry forms. For an accounting firm, the combination of a minor ranking signal and a significant trust signal makes HTTPS essential.

My site looks fine on my laptop. Why does mobile matter?

Because Google's systems assess and rank the mobile version of your site, not the desktop version. Google completed its move to mobile-first indexing across all websites. If your mobile site is slow, hard to navigate, or missing content that appears on your desktop version, your rankings reflect that.

How often should I check the technical health of my website?

Run a review at least twice a year, and also whenever you make significant changes to the site such as adding new pages, switching hosting provider, or changing your CMS. Google Search Console monitors your site continuously and will alert you to new errors, so connecting your site there is a good baseline for ongoing monitoring.