Semrush
Semrush is the only major SEO platform that treats paid search as a first-class data set — competitor Google Ads copy, keyword bids, and spend estimates sit alongside organic data in one subscription. Essential in this category.
The take
What is Semrush?
Semrush is an all-in-one SEO and digital marketing platform that combines keyword research, rank tracking, competitor analysis, technical audits, and paid search intelligence in one subscription. Founded in 2008 and public on the NYSE since 2021, Semrush reported roughly $400 million in annual revenue as of 2024 and serves over 100,000 paying customers. Its defining strength is treating paid search as a first-class data set alongside organic SEO.
The platform spans more than 50 tools. Domain Overview shows any site’s traffic, top keywords, and backlinks. The Keyword Magic Tool returns large keyword sets with intent and difficulty. Position Tracking monitors daily rankings. Advertising Research surfaces competitor Google Ads copy and estimated spend — data that organic-only tools do not provide.
Semrush anchors the SEO tools we cover alongside Ahrefs. It connects to Google Search Console for verified search data and to Google Analytics for traffic context. For teams running organic and paid search from the same desk, Semrush is the default platform.
How does Semrush work?
Semrush crawls the web and maintains its own keyword and backlink databases. When you query a domain or keyword, Semrush returns data from those databases instantly rather than running a live search. The platform organizes work into projects, each tied to a domain you manage and track over time.
Keyword and competitor research
The Keyword Magic Tool is the research core. Enter a seed keyword and Semrush returns thousands of variations grouped by topic, with search volume, difficulty (0–100), and intent tags. The Domain Overview and Organic Research tools reverse-engineer any competitor — showing the keywords they rank for, their estimated traffic, and which pages earn it. The Keyword Gap report finds terms competitors rank for that you do not.
Advertising Research
Advertising Research is Semrush’s clearest advantage. It estimates a competitor’s Google Ads spend, lists the keywords they bid on, and shows the live ad copy they run. This lets a paid search manager benchmark a competitor’s strategy and harvest keyword ideas without guessing. No backlink-focused tool offers this depth of paid-search data.
Site Audit and content tools
Site Audit crawls your site and flags issues across 140-plus technical checks — slow pages, broken links, duplicate content, and crawl errors — ranked by priority. The content toolkit adds topic research, an SEO writing assistant that scores drafts against ranking pages, and a brand monitoring tracker. Together these cover the full content production loop inside one platform.
How does Semrush compare to Ahrefs and Ubersuggest?
Semrush leads on combined SEO plus PPC data and content workflow breadth. Ahrefs leads on backlink index size and freshness for link building. Ubersuggest is the low-cost entry point for keyword research without professional depth. The table below shows the trade-offs.
| Attribute | Semrush | Ahrefs | Ubersuggest |
|---|---|---|---|
| Best for | Combined SEO + PPC, content | Link building, backlink research | Budget keyword research |
| Keyword database | 25B+ keywords, 142 databases | 200+ countries | 195 countries |
| Backlink index | Smaller, weekly updates | 14 trillion links, every 15–30 min | Smaller, monthly |
| PPC / ad data | Comprehensive (best) | Limited | Basic |
| Technical audit | Strong (140+ checks) | Strong (100+ checks) | Basic |
| Starting price | $117.33/month | $129/month | $29/month |
| Free tier | No (7-day trial) | Webmaster Tools | 3 searches/day |
| 80/20 verdict | Pick when running SEO + paid search | Pick for link building | Pick for solo budget research |
“Semrush earns its price the moment you manage paid search alongside SEO — seeing a competitor’s actual Google Ads copy and estimated spend is data Ahrefs simply does not carry,” said Marcus Reed, Go-to-Market Editor at tools8020.
Who uses Semrush in 2026?
Marketing teams that run both organic and paid channels use Semrush as their single source of search data — tracking rankings, auditing sites, and pulling competitor ad intelligence in one place. Agencies use it heavily for client reporting, with white-label PDF exports and per-client projects. Content teams use the SEO writing assistant and Keyword Magic Tool to plan and grade articles before publishing.
The common profile: a team where SEO and Google Ads are both ongoing channels, not a side project. For those teams, the cross-channel data justifies the price. A solo blogger doing occasional keyword research will overpay — Ubersuggest or free Google Search Console data covers that need at a fraction of the cost.
How much does Semrush cost?
Semrush now sells a unified “SEO + AI Search” lineup. The entry SEO plan starts at $117.33 per month billed annually (instead of $139) and covers 5 websites and 500 keywords tracked daily. Starter ($165.17) adds AI visibility tracking, Pro+ ($248.17) raises limits to 1,500 keywords, and Advanced ($455.67) adds API data integration. Extra users start at $45/mo and add-ons raise the real monthly cost above the headline price.
| Plan | Price (annual) | Websites | Keywords tracked daily | Best for |
|---|---|---|---|---|
| SEO | $117.33/month | 5 | 500 | Beginners, individual projects |
| Starter | $165.17/month | 5 | 500 | Starting SEO + AI visibility |
| Pro+ | $248.17/month | 15 | 1,500 | Growing brands scaling SEO + AI |
| Advanced | $455.67/month | 40 | 5,000 | Power users needing API access |
Pricing verified at semrush.com/pricing as of 2026-05-26. Prices shown are billed annually; Semrush charges per additional user and per add-on, so budget above the headline plan price for teams.
When should you skip Semrush?
Semrush is the wrong choice in three situations. Use the listed alternative instead.
- You only need backlink data for link building. Ahrefs has the larger, faster-updating link index — its backlink data is the industry standard, and Semrush’s index lags it for link campaigns.
- You are a solo operator on a tight budget. Ubersuggest covers keyword research at $29 per month, and Google Search Console gives your own site’s data for free. Semrush’s $117.33 floor is hard to justify without paid search.
- You only run SEO, never paid search. Semrush’s biggest advantage is its advertising data. If you never touch Google Ads, you are paying for a toolkit you will not use — a leaner platform fits better.
How we evaluated Semrush
This review draws on Marcus Reed’s seven years running go-to-market and SEO programs at B2B SaaS companies, where Semrush handled keyword research, rank tracking, and competitor ad analysis. We tested the current platform — Keyword Magic Tool, Position Tracking, Advertising Research, and Site Audit — in May 2026.
We benchmarked Semrush keyword and backlink data against Ahrefs using three verified domains as ground truth. See our evaluation methodology for full scoring criteria. For teams building a lean search stack, our guide to the 80/20 of SEO tools covers where Semrush fits and where a cheaper tool is enough.
Strengths & trade-offs
What earns the score
- The strongest combined SEO and PPC platform — covers both in one subscription
- Advertising Research reveals competitor ad copy and estimated paid spend
- Keyword Magic Tool returns large keyword sets with intent and difficulty data
- Position Tracking and reporting are agency-friendly with white-label exports
- Large feature surface covers technical audits, content, social, and local SEO
Where it falls short
- Entry SEO plan at $117.33 per month limits you to 5 websites and 500 keywords tracked daily
- Backlink index is smaller and slower-updating than Ahrefs for link building
- Steep learning curve — the toolkit is broad and the UI is dense
- Add-ons for local SEO and agency tools raise the real monthly cost quickly
- No permanent free tier — only a 7-day free trial
How it compares
| Tool | Score | Tier | From |
|---|---|---|---|
 Ahrefs | 93 | Essential | $129/user |
| 86 | Essential | $117.33/user | |
| 70 | Strong | $29/user |
Frequently asked questions
Is Semrush better than Ahrefs?
Neither is strictly better — they optimize for different work. Semrush wins for teams running SEO and paid search together, with deeper Google Ads intelligence and a broader content toolkit. Ahrefs wins for link building, with a larger and faster-updating backlink index. Teams focused on backlinks pick Ahrefs; teams managing both organic and paid pick Semrush.
How much does Semrush cost?
Semrush's entry SEO plan starts at $117.33 per month billed annually and includes 5 websites and 500 keywords tracked daily. Starter is $165.17, Pro+ is $248.17 (1,500 keywords), and Advanced is $455.67 with API access. Extra users start at $45/mo and add-ons cost more. Pricing verified at semrush.com on 2026-05-26.
Does Semrush have a free version?
Semrush does not offer a permanent paid-tier replacement for free. The pricing page advertises a 7-day free trial ('Try Semrush free for seven days. Cancel anytime'), and Semrush also publishes a set of limited free tools. For ongoing keyword research without paying, Ubersuggest or Google Search Console's own data is a more practical free starting point.
What is the Keyword Magic Tool?
The Keyword Magic Tool is Semrush's keyword research engine. Enter a seed term and it returns thousands of related keywords grouped by topic, with search volume, keyword difficulty, search intent, and SERP features for each. It indexes over 25 billion keywords across 142 country databases, making it the starting point for building topical content plans.
Can Semrush track competitor ad spend?
Yes, through Advertising Research. Semrush estimates how much a competitor spends on Google Ads, which keywords they bid on, and the actual ad copy they run. The numbers are estimates rather than exact billing data, but they are accurate enough to benchmark a competitor's paid strategy and find keywords worth targeting yourself.
Is Semrush good for small businesses?
Semrush works for small businesses that run both SEO and Google Ads, but the $117.33 entry SEO plan is a significant cost for a solo operator. Small teams doing occasional keyword research without paid search will get more value from a cheaper tool. The platform's depth pays off when SEO and PPC are core, ongoing channels.