Semrush Review 2025:
The #1 SEO Tool for UK Businesses?
We use Semrush daily for our own SEO and for client campaigns. This is our honest, comprehensive review — covering every major feature, real UK pricing, and how it compares to Ahrefs and Moz for businesses in Britain.
Semrush is the most comprehensive SEO and digital marketing platform available. For UK businesses serious about search visibility — whether targeting local Lancashire customers or competing nationally — Semrush provides the data and tools to outrank competitors systematically.
What is Semrush?
Semrush is the world's leading all-in-one digital marketing platform, used by over 10 million marketing professionals worldwide including teams at Amazon, Tesla, Samsung, and IBM. Founded in 2008, it has grown from a simple keyword research tool into a comprehensive platform covering SEO, PPC advertising, content marketing, social media, and competitive intelligence.
The platform's core strength is its data scale. Semrush maintains the world's largest keyword database with over 26 billion keywords across 140+ countries, updated continuously. This means when you research a keyword or analyse a competitor, you are working with the most comprehensive data available — not a sample.
For UK businesses, Semrush is particularly powerful because it provides UK-specific search data — accurate search volumes for British English queries, UK SERP tracking, and local SEO tools tailored for Google UK. Whether you are targeting customers in Preston, Manchester, or across the whole of Britain, Semrush gives you the intelligence to outrank competitors.
Crucially, Semrush now tracks AI search visibility — monitoring how your brand and content appear in ChatGPT, Perplexity, Google AI Overviews, and other AI-powered search tools. As AI search continues to grow, this capability is becoming as important as traditional Google rank tracking.
What Can You Do with Semrush?
Semrush contains 55+ tools. Here are the six most valuable for UK businesses.
Keyword Research
Find the exact keywords your target customers are searching for in the UK. Semrush's Keyword Magic Tool gives you search volume, difficulty, intent, and SERP features for any keyword — with UK-specific data.
Competitor Intelligence
Type any competitor's domain and see their top organic keywords, estimated traffic, backlink profile, and paid search strategy. This is the fastest way to find keyword gaps and content opportunities.
Technical SEO Audit
Semrush crawls your entire website and produces a prioritised list of technical issues — broken links, slow pages, missing tags, and Core Web Vitals problems — with clear instructions on how to fix each one.
Backlink Analysis
Analyse your backlink profile and your competitors'. Find toxic links that may be harming your rankings, identify link-building opportunities, and track new and lost backlinks in real time.
Content Marketing
The SEO Writing Assistant grades your content in real time as you write, checking keyword usage, readability, tone of voice, and originality. Available as a Google Docs and WordPress plugin.
AI Search Visibility
Track how your brand appears in AI-generated answers from ChatGPT, Perplexity, and Google AI Overviews. As AI search grows, this is becoming as important as traditional rank tracking.
Semrush Pricing Plans (2025)
All plans include a 7-day free trial. Annual billing saves up to 17% versus monthly. Prices in USD, exclude VAT.
Pro
Freelancers & small businesses
- Keyword research
- Competitor analysis
- Site Audit
- Position Tracking
- Backlink Analytics
- MCP Access
- 500 keywords tracked
- 5 projects
Semrush Pros & Cons
Pros
- World's largest keyword database — 26+ billion keywords across 140+ countries
- Comprehensive competitor analysis — see any competitor's organic keywords, traffic, and backlinks
- All-in-one platform — SEO, PPC, content, social, and competitor intelligence in one tool
- Position Tracking with UK-specific city and postcode level granularity
- Site Audit tool identifies and prioritises technical SEO issues automatically
- AI Visibility tracking — monitor your brand in ChatGPT, Perplexity, and Google AI Overviews
- Content Marketing Toolkit — topic research, SEO writing assistant, and content audit
- Backlink Analytics and Link Building tool for off-page SEO
- 7-day free trial with full access — no watered-down version
- Used by 10+ million marketing professionals worldwide
- Regular product updates — Semrush adds new features every quarter
- Excellent learning resources — Semrush Academy offers free SEO certifications
Cons
- Premium pricing — Pro plan at $117/month is a significant investment for micro-businesses
- Steep learning curve — the sheer number of tools can be overwhelming for beginners
- Only one user seat on Pro plan — additional users cost extra
- Data is US-centric by default — UK users need to configure location settings
- Some advanced features (API, white-label reports) locked behind Business plan
- Historical data only available on Guru plan and above
- Mobile app is limited compared to the desktop experience
Semrush vs Ahrefs vs Moz: Full Comparison
The three most popular SEO tools compared side by side for UK businesses.
| Feature | Semrush ★ | Ahrefs | Moz Pro |
|---|---|---|---|
| Keyword database | 26B+ keywords | 20B+ keywords | ~500M keywords |
| Countries covered | 140+ | 170+ | 170+ |
| Backlink index | 43T+ backlinks | 35T+ backlinks | ~45T links |
| Site audit | ✓ All plans | ✓ All plans | ✓ All plans |
| Rank tracking | ✓ All plans | ✓ All plans | ✓ All plans |
| Competitor analysis | ✓ Best-in-class | ✓ Strong | ✓ Basic |
| PPC / Ads research | ✓ Included | ✗ Not included | ✗ Not included |
| Content marketing tools | ✓ Guru+ | ✗ Limited | ✗ Limited |
| AI visibility tracking | ✓ Add-on | ✗ Not available | ✗ Not available |
| Local SEO tools | ✓ Add-on | ✗ Limited | ✓ Moz Local |
| Free trial | 7 days (full access) | ✗ No free trial | 30 days |
| Entry price (annual) | $117.33/mo | $129/mo | $99/mo |
| G2 rating | 4.5/5 (2,200+ reviews) | 4.6/5 | 4.3/5 |
Data accurate as of May 2025. Prices and features subject to change. Always verify current pricing on each provider's website.
Who Should Use Semrush?
✓ Semrush is right for you if:
- You want to understand why competitors rank above you and how to overtake them
- You are creating content and want data-driven keyword targeting
- You run PPC campaigns and want to see competitors' ad strategies
- You manage SEO for multiple clients as a freelancer or agency
- You want to track your Google rankings daily with UK-specific data
- You need to audit your website for technical SEO issues
- You want to monitor your brand's visibility in AI search tools
- You are serious about growing organic traffic as a long-term strategy
✗ Semrush may not be right if:
- You have a brand-new website with no content strategy yet — focus on building content first
- Your budget is under £50/month and you only need basic keyword research
- You only need backlink analysis — Ahrefs may be a better fit for that specific use case
- You want phone support — Semrush support is chat and email only
- You are not willing to invest time learning the platform — it has a learning curve
Semrush Now Tracks AI Search Visibility
As ChatGPT, Perplexity, Google AI Overviews, and Bing Copilot become primary discovery channels, Semrush has launched AI Visibility tracking — showing you exactly how your brand appears (or doesn't appear) in AI-generated answers.
This is the frontier of SEO in 2025. Businesses that optimise for AI search now will have a significant advantage as AI-powered search continues to grow. Semrush is currently the only major SEO platform with dedicated AI visibility tracking built in.
Our Verdict
Semrush is the most powerful SEO and digital marketing platform available, and it is our top recommendation for UK businesses serious about search visibility. The combination of the world's largest keyword database, best-in-class competitor intelligence, and the new AI visibility tracking makes it uniquely positioned for the current search landscape.
We use Semrush for our own SEO at Product Systems AI and for client campaigns. The competitor analysis alone — seeing exactly which keywords competitors rank for and how much traffic they generate — is worth the subscription cost. It transforms SEO from guesswork into a systematic, data-driven process.
The 7-day free trial is genuinely generous — you get full access to all Pro or Guru features, not a limited demo. We strongly recommend running a competitor analysis on your top three competitors during the trial. The results are typically eye-opening and make the case for the subscription better than any review can.
Ready to Outrank Your Competitors?
Start your 7-day free trial — full access, no credit card charge until day 8, cancel anytime. See exactly what keywords your competitors rank for and where your opportunities lie.
Affiliate link — we earn a commission if you sign up. This does not affect our review or your price.
Semrush FAQs
Is Semrush worth it for a small UK business?
Yes — for any UK business that relies on search traffic or wants to outrank competitors, Semrush pays for itself quickly. The Pro plan at $117/month (billed annually) gives you keyword research, competitor analysis, site audit, and rank tracking for up to 5 websites. One well-researched blog post or one competitor keyword you capture can generate far more value than the monthly subscription cost. The free trial lets you verify this before committing.
How much does Semrush cost in the UK?
Semrush pricing is in USD. The Pro plan costs $117.33/month billed annually ($139/month monthly). The Guru plan costs $208.33/month annually ($249/month monthly). The Business plan costs $416.66/month annually ($499/month monthly). UK users pay in USD — at current exchange rates, Pro is approximately £92/month annually. Prices exclude VAT. A 7-day free trial is available on all plans.
Does Semrush offer a free trial?
Yes. Semrush offers a 7-day free trial on the Pro and Guru plans. You get full access to all features during the trial — no watered-down version. A credit card is required but you will not be charged until the trial ends. You can cancel at any time before the trial expires.
How does Semrush compare to Ahrefs?
Both are world-class SEO tools. Semrush has a larger keyword database (26+ billion keywords vs Ahrefs' 20+ billion), stronger competitor analysis features, and a more comprehensive content marketing toolkit. Ahrefs is generally considered stronger for backlink analysis and has a cleaner interface. Semrush wins on breadth — it covers SEO, PPC, content marketing, social media, and competitor intelligence in one platform. For most UK businesses, Semrush's all-in-one approach delivers more value per pound.
How does Semrush compare to Moz?
Semrush significantly outperforms Moz on data volume, feature depth, and update frequency. Moz was the pioneer of SEO tools but has fallen behind in recent years. Semrush's keyword database is approximately 5x larger than Moz's, its backlink index is more current, and its competitor analysis tools are far more sophisticated. Moz Pro starts at $99/month but offers substantially less functionality. For serious SEO work, Semrush is the stronger choice.
Can I use Semrush for free?
Yes, with limitations. Semrush offers a free account with 10 keyword searches per day, 10 domain searches per day, and limited access to most tools. This is useful for occasional research but not sufficient for ongoing SEO work. The 7-day free trial gives you full Pro or Guru access to evaluate whether the paid plan is right for you.
Is Semrush good for local SEO in the UK?
Yes. Semrush's Position Tracking tool supports UK-specific tracking at national, regional, and city level. You can track rankings for specific UK postcodes, which is invaluable for local businesses targeting Lancashire, Preston, Manchester, or any specific UK area. The Local add-on ($20/month) provides additional local SEO features including Google Business Profile management and local citation tracking.
What is Semrush's keyword database size?
Semrush has the world's largest keyword database with over 26 billion keywords across 140+ countries. For the UK specifically, Semrush tracks millions of keywords with accurate UK search volume data, difficulty scores, and SERP feature data. This makes it the most comprehensive keyword research tool available for UK-focused SEO campaigns.
Can Semrush track AI search visibility (ChatGPT, Perplexity, Gemini)?
Yes — Semrush now offers AI Visibility tracking as a separate toolkit. This monitors how your brand and content appear in AI-generated answers from ChatGPT, Perplexity, Google AI Overviews, and other AI search tools. As AI search grows, this is becoming an essential capability for forward-thinking businesses. The AI Visibility toolkit is available as an add-on to any Semrush plan.
Does Semrush include a site audit tool?
Yes. Semrush's Site Audit tool is one of the best in the industry. It crawls your website and identifies technical SEO issues including broken links, slow pages, missing meta tags, duplicate content, crawlability problems, and Core Web Vitals issues. The audit provides a health score and prioritised list of fixes. It is included in all paid plans and runs automatically on a schedule you set.