Technical SEO for UK law firms.
Technical SEO that fixes the ranking floor. Core Web Vitals, page speed, mobile usability, crawlability, indexation, HTTPS, schema markup, structured data, internal linking depth. Done properly, technical SEO is the foundation everything else compounds on top of.
Technical SEO for UK law firms. Site speed, crawlability, indexation, schema.
Most law firm websites are not broken in obvious ways — they are slow, bloated, and harder to crawl than they look. Years of practice-area pages, location pages and old blog posts build up into indexation bloat and thin, near-duplicate URLs. Themes chosen for how they look rarely meet modern Core Web Vitals thresholds. And because legal sites lean so heavily on structured information — services, locations, people, reviews — weak or missing schema costs a firm twice: once in Google, and again in AI search, where clean structured data often decides whether a firm is cited at all.
Technical SEO is the ranking floor
Slow sites with poor crawlability cannot rank no matter how good the content is. Fix the floor first.
AI assistants need clean structured data
Schema markup, valid JSON-LD and crawlable structure. AI extraction depends on these.
Most law firm sites are technically weaker than they think
Common problems: bloated themes, poor mobile usability, missing schema, broken internal links, indexation gaps.
What this engagement actually does.
Core Web Vitals optimisation
LCP, INP, CLS all optimised against Google’s thresholds.
Crawlability and indexation audit
Robots.txt, XML sitemaps, canonical tags, noindex audit, internal linking depth.
Structured data foundations
Valid, non-conflicting JSON-LD sitewide, with no competing entities. The detailed build is schema markup.
Mobile usability and accessibility
Mobile responsive audit, accessibility audit, touch target sizing, tap delays.
HTTPS and security audit
SSL configuration, mixed content audit, security headers.
Page speed optimisation
Render-blocking resources, image optimisation, lazy loading, caching strategy.
Why a law firm site gets technically worse as it grows.
Almost every established firm has the same shape of problem. The site launched with thirty pages. Fifteen years later it has nine hundred, and nobody decided that.
Every fee earner who joined got a profile. Every practice area grew sub-pages. The news section has been running since 2011 and nothing has ever been deleted from it. There are two or three campaign microsites from previous marketing managers, a folder of PDF guides, and the remains of at least one rebuild by a previous agency. All of it is URLs, and Googlebot has a finite appetite for any given site. Your conveyancing page is competing for that attention with four hundred news posts nobody has read since the year they went up.
Legal sites also carry more rebuild damage than most. Firms change agencies, merge, rebrand after a partner retires, and each event leaves redirect chains, orphaned pages and URLs that answer with a 200 when they should be gone. The work here is unglamorous: decide what should exist, make sure it can be reached, make sure everything else resolves properly or stops resolving at all. Done once and maintained, it stops being a problem. Left alone, it compounds.
The Core Web Vitals myth and the rebuild trap.
Firms get sold expensive rebuilds on the promise of a speed score. It is worth being clear about what that score does. Core Web Vitals is a tiebreaker, not a lever. Failing badly costs you something. Passing brilliantly does not push you past a competitor with a better page, and no amount of optimisation will move a thin page above a thorough one.
That does not make speed unimportant. It makes the argument for it a commercial one rather than a ranking one. A personal injury page that takes six seconds to become usable on a phone on 4G has lost a proportion of its visitors before Google is involved at all. The enquiries are gone whether or not the ranking moved. That is the number worth quoting to a managing partner, not the score out of a hundred.
The rebuild trap is the related one. A firm launches a new site, and traffic falls off a cliff in week two. Almost always the same causes: URLs changed without a mapped redirect for every old one, content trimmed for visual tidiness, practice-area depth lost to a cleaner menu. A rebuild is the single highest-risk technical event a firm will go through, and it is the one most often run without anyone checking search implications until afterwards. If a rebuild is on your horizon, the time to involve me is before the URL structure is signed off, not after the traffic drops.
Technical SEO FAQs.
FAQ 1How quickly does technical SEO move rankings?
It depends which layer is broken. Indexation and crawl fixes can move things within weeks, because you are making pages reachable that Google was not seeing properly. Speed and Core Web Vitals work typically shows over four to twelve weeks and moves rankings less than people expect, though it usually shows up in conversion sooner than that. If a firm needs movement fast, the indexation work is where to start.
FAQ 2Do we need to change CMS or theme?
Sometimes. Many law firm sites are on bloated WordPress themes that cannot meet modern speed standards. Some can be optimised in place; others need migration. The audit identifies which.
FAQ 3Is technical SEO part of the monthly retainer?
Yes, and it has to be continuous rather than a one-off. Plugin updates, new pages, a theme change or a new practice area can each reintroduce something that was fixed six months ago. On a retainer the technical checks run every month so problems surface as they appear rather than at the next audit.
FAQ 4Can you do this without a developer on our side?
Usually yes. On WordPress I implement directly, which removes most of the back and forth. Where your site is on a proprietary platform or your firm has its own development team, I write the specification and the acceptance tests, then verify the result once it is live rather than assuming it landed as briefed.
FAQ 6How does technical SEO affect our visibility in AI search?
Directly. AI assistants can only cite what they can crawl and parse, so clean structure and valid schema are prerequisites for AI search visibility. The technical work and the AI work reinforce each other.
FAQ 7We have several offices — how do you handle multiple locations?
Each location gets a clear, crawlable URL and correct LocalBusiness and LegalService schema, without creating thin, near-duplicate pages. The aim is one strong page per genuine location, properly linked — the same principle behind local SEO for solicitors.
Related work.
Schema markup
The structured data layer on top of it.
SEO audit
Where to find out what is actually wrong.
SEO for solicitors
The full engagement for UK law firms.
Want to discuss Technical SEO for your firm?
Book a 30-minute intro call. Or commission the SRA-Compliant AI Visibility Audit and get a formal picture of where this service would deliver the most value.
Related: search-led web design for solicitors — where these technical foundations are built in from launch.