*Content type: Data & Research (link-building content)*
We ran our SEO audit tool on 100 UK small business websites across 10 industries. Every site was analysed for technical SEO, on-page optimisation, Google Maps readiness, security, and AI search readiness.
The results were eye-opening. Here's what we found.
- Sample: 100 UK small business websites
| Finding | Percentage | |---------|-----------| | Sites with zero security headers | 78% | | Images without alt text (site average) | 61% | | Sites with no LocalBusiness schema | 85% | | Sites with LCP over 4 seconds (poor) | 52% | | Sites with CLS over 0.25 (poor) | 34% | | Sites with multiple H1 tags | 28% | | Sites with no meta description on key pages | 22% | | Average overall SEO score | 47/100 |
78% of sites had zero security headers. Not one or two missing -- all six absent.
This was the most consistent finding across every industry. Whether it's a restaurant in Manchester or a plumber in Bristol, the vast majority of small business websites have no security headers at all.
The fix takes 30 minutes and costs nothing. Yet almost 4 in 5 businesses haven't done it.
By industry: Accountants scored best (50% had at least some headers). Restaurants scored worst (93% had none).
On average, 61% of images across all sites had no alt text. Some sites were worse -- we found one with 96% of images missing alt text.
This means the majority of visual content on small business websites is completely invisible to Google. No Google Image Search visibility, no contextual understanding, and a significant accessibility violation.
By industry: Salons were worst (72% missing -- ironic, since their business IS visual). Accountants were best (38% missing).
85% of sites had no LocalBusiness schema on any page. This means Google Maps can't properly connect these websites to their business listings.
For businesses that depend on "near me" searches (restaurants, tradespeople, salons), this is potentially the biggest SEO gap they have.
Even sites with location pages (addresses, maps, contact info) often lacked the structured data that tells Google this information is about a specific local business.
52% had an LCP over 4 seconds (Google's "poor" threshold). The average LCP was 6.8 seconds -- nearly 3x Google's recommended 2.5 seconds.
The primary cause: unoptimised images. Nearly every slow site had at least one image over 1MB being loaded on the homepage.
Fastest industry: Accountants (average LCP 3.2s -- simpler sites with fewer images). Slowest industry: Restaurants (average LCP 9.1s -- heavy imagery, often with menu PDFs and gallery plugins).
Despite the technical gaps, most sites had reasonable on-page SEO:
Credit to WordPress and its SEO plugins (Yoast, Rank Math) -- these handle the basics automatically. The gaps are in the areas plugins DON'T cover: speed, security headers, schema, and strategic content.
67% of sites hadn't published new content in over 6 months. Many had blogs with the last post dated 2024 or earlier.
Google uses content freshness as a ranking signal. A stale site suggests a stale business.
We checked for AI search readiness signals: structured data quality, content structure, FAQ schema, author credentials, multi-platform presence.
Average AI search readiness score: 35/100. Almost no small business is optimised for AI search -- which means the early movers have a real advantage.
Only 8% had FAQ schema. Only 12% had author bios visible. Only 3% were verified on Bing Places.
| Score Range | Percentage of Sites | Rating | |-------------|-------------------|--------| | 80-100 | 2% | Excellent | | 60-79 | 15% | Good | | 40-59 | 48% | Fair | | 20-39 | 30% | Poor | | 0-19 | 5% | Critical |
The median score was 47/100. Only 17% of sites scored 60 or above. The vast majority of small business websites have significant room for improvement.
| Rank | Industry | Average Score | |------|----------|--------------| | 1 | Accountants | 58 | | 2 | Estate Agents | 54 | | 3 | Dentists | 52 | | 4 | Gyms/Fitness | 49 | | 5 | Retail Shops | 47 | | 6 | Cafes | 45 | | 7 | Tradespeople | 43 | | 8 | Salons | 42 | | 9 | Other Services | 41 | | 10 | Restaurants | 39 |
Accountants topped the chart -- likely because their sites tend to be simpler (fewer images, less JavaScript) and they're more likely to invest in professional web development.
Restaurants scored lowest -- heavy imagery without optimisation, complex menu plugins, and high reliance on third-party platforms.
If you're a small business owner and you've never had an SEO audit, there's an 83% chance your site scores below 60/100. That means significant issues are holding back your Google visibility.
The good news: most of the common issues (security headers, alt text, schema, page speed) are fixable. Many are quick wins that cost nothing.
The question is: do you know which issues YOUR site has?
*Find out your score. [Get your SEO audit](https://seorankmasters.com) -- from GBP 29. Professional PDF report with prioritised action plan.*
Methodology note: This study was conducted using Google Lighthouse v13, our custom SEO crawler, and automated security/schema checkers. Scores are based on our weighted methodology: Technical SEO (25%), On-Page SEO (20%), Local SEO (15%), Content (15%), Accessibility (10%), AI Search (10%), Schema (5%). All data collected in March 2026.
Get a free score check across 6 categories. Takes 30 seconds.
Check My Score Free