The State of UK Building Society Digital 2026
We put the public websites of 44 UK building societies through Google's own mobile testing tool, the way a prospective member on a phone meets them: how fast the page loads, whether the society can measure anything, how accessible the site is, and how easily it is found. Public information only, collected in October 2026; 38 returned complete results. The headline findings are below, free to cite with attribution to Credit Canary.
Base: 38 UK building societies returning complete results from Google PageSpeed Insights (mobile), October 2026. Figures by Credit Canary.
What we found
Mobile speed is the sector's biggest gap
On Google's mobile test (a mid-tier phone on a typical 4G connection), 97% of societies took more than four seconds to render their main content, and the median mobile speed score was just 54 out of 100. Not one of the 38 reached the “good” band, and 34% sat in the red. This is the page a member lands on when they decide whether to join, and it is where the sector is weakest.
Size does not buy speed
The six largest societies by assets scored a median of 38 on mobile speed, below the 54 median for the sector as a whole. Bigger budgets have gone into heavier homepages, not faster ones. Several of the quickest sites in the set belong to small and mid-size societies, which is good news: speed is an engineering choice, not a function of scale.
Measurement is uneven
16% run no web analytics that we could observe at all, and 34% have no modern GA4 in place. 24% show no cookie-consent tool. Without measurement, a society cannot tell which channels bring members or where applicants give up, so digital spend is a guess. (We can only see tags that load without a consent click, so the true figure for the largest sites may be a little better.)
Findability is a relative strength
Unlike the wider mutual sector, building societies get the search basics right: the median findability score was 86 out of 100, only 5% lacked a useful meta description, and every assessed society had some structured data. The problem is not being found. It is what happens to the visitor once they arrive on a slow page.
Accessibility is close, but a third fall short
The median automated accessibility score was 92 out of 100, but 34% scored below 90, the level at which common barriers start to lock people out. Accessibility is a duty under the Equality Act, and automated checks catch only a third to a half of real issues, so the true gap is wider. For a member-owned mutual, it is also simply the right thing to get right.
Some sites would not load for Google's tool
6 of the 44 societies could not be loaded reliably by Google's testing tool during the audit. In most cases this points to aggressive bot-blocking rather than a site that is genuinely down, but it is worth knowing: the same defences that stop a scraper can also trip up legitimate services, previews and some assistive technology.
Method and citation
All figures come from Credit Canary's audit of 44 UK building societies with a live website, using public information only: each homepage was assessed with Google PageSpeed Insights on a mobile profile, which renders the page in a real browser and reports speed, accessibility and SEO, alongside the tags and analytics that load on the page. Collected in October 2026; 38 societies returned complete results and 6 could not be loaded reliably. This is passive analysis of what each site already shows every visitor; no site was scanned or tested for weaknesses. Speed figures use Google's simulated mid-tier phone on a throttled connection, so they are a fair comparison between societies rather than an absolute load time. Automated accessibility checks catch roughly a third to a half of real issues, so true figures may be higher. These are a prioritisation guide, not a verdict on any individual society.
You are welcome to cite these figures with attribution to Credit Canary and a link to this page.
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