What is SEO software? The ultimate guide 2026
SEO software helps optimise websites for search engines such as Google. The tools analyse keywords, backlinks, technical errors and the competitive landscape in order to improve rankings in a targeted way. Without professional SEO tools, data-driven optimisation is hardly possible today.
In 2026 the market is dominated by two giants: Semrush (part of Adobe since April 2026) with its broad all-in-one suite and Ahrefs with a very large backlink and keyword index (29bn+ keywords). For the German-speaking region, Sistrix with its visibility index is the industry standard. Low-cost alternatives such as Mangools and Ubersuggest give beginners a professional start for around €30 to €40/month.
Did you know?
According to a BrightEdge study (2019), organic search generated around 53% of all website traffic on the sites analysed – more than any other channel.
What should you look for in SEO software?
Choosing the right SEO tool depends on five core factors:
- Keyword research: the heart of every SEO tool. Look at the database size (Ahrefs: 29bn, Semrush: 26bn) and the accuracy of the search volume data. For the DACH market, coverage of German keywords is crucial.
- Backlink analysis: backlinks are still a top-3 ranking factor. Semrush (43tn+) and Ahrefs (35tn+ in its backlink history) both report link indexes in the trillions. Cheaper tools such as Mangools offer solid but less in-depth analyses.
- Rank tracking: monitor your keyword rankings over time. The number of trackable keywords varies widely: from 125 per project (Ubersuggest) to 2,000 daily (SE Ranking). Also check the update frequency (daily vs. weekly).
- Site audit: detect and fix technical SEO errors. Semrush and Ahrefs offer the most comprehensive crawls; Seobility impresses for smaller sites with its on-page checker.
- Value for money: the range goes from €29 (Ubersuggest) to €119 (Sistrix). For beginners and freelancers, cheaper tools are often enough – enterprise customers need the data depth of Semrush or Ahrefs.
The best SEO tools in detail
Semrush: the all-in-one powerhouse
Semrush is the most comprehensive SEO tool on the market. With more than 26 billion keywords and 43 trillion backlinks it has one of the largest databases. Since April 2026 Semrush has been part of Adobe. In addition to classic SEO, Semrush also covers PPC, social media and content marketing – a true all-in-one tool. From €112.52/month (SEO plan, billed annually), ideal for agencies and professional marketing teams.
Ahrefs: the backlink specialist
When it comes to backlink analysis, Ahrefs is one of the strongest tools. The Site Explorer delivers the most detailed link analysis on the market, and the Content Explorer finds the most shared content on any topic. Lite costs €99/month billed annually (€119 monthly); the stripped-down Starter plan for keyword research costs €27/month.
Mangools: the beginner champion
Mangools proves that professional SEO does not have to be expensive. From €37.70/month (Basic, billed annually) you get five tools: KWFinder (keyword research), SERPChecker (SERP analysis), SERPWatcher (rank tracking), LinkMiner (backlinks) and SiteProfiler. Its intuitive interface makes Mangools a good fit for beginners and freelancers.
Sistrix: the DACH standard
For the German-speaking market, Sistrix is the industry standard. Its visibility index is the recognised benchmark metric in the DACH SEO scene. The Start plan costs €119/month excl. VAT (cancel monthly) – but includes only 3 months of history and no content module; more data and projects come with Plus (€239) and above.
Costs & prices: what does SEO software cost?
The monthly cost of professional SEO software is between €29 and €119 (cheapest plan of each tool):
| Tool | Price/month | Rank tracking | Free plan |
|---|---|---|---|
| Ubersuggest | €29.00 | 125 keywords/project | ✅ (limited) |
| Mangools | €37.70 | 200 keywords | ✅ (free account) |
| Seobility | €47.92 | 300 keywords | ✅ (1 project, 10 keywords) |
| Moz Pro | €70.71 (US$79) | 300 keywords | ❌ (free single tools) |
| SE Ranking | €87.20 | 2,000 keywords daily | ❌ (14-day trial) |
| Ahrefs | €99.00 | 750 keywords | ✅ (Ahrefs Free, limited) |
| Semrush | €112.52 | 500 keywords | ✅ (limited) |
| Sistrix | €119.00 | 2,500 SERP updates/mo | ❌ (14-day trial) |
Prices: cheapest plan per month, mostly with annual billing – details in the footnote below the comparison. Tip: Ubersuggest is the only provider in this comparison with a lifetime plan from €290 – pay once, no monthly fees. Compared with the €29 monthly plan, it pays off after 10 months.
Beginner vs. pro: which tool suits you?
- Bloggers & beginners: Mangools (€37.70) or Ubersuggest (€29) – simple to use, low-cost entry, all basic features.
- Freelancers & small agencies: Seobility (€47.92) or SE Ranking (€87.20) – lots of tracked keywords, white-label reports as an add-on.
- Marketing teams: Ahrefs (€99) or Moz Pro (US$79 ≈ €71) – deep data, robust analyses.
- Agencies & enterprise: Semrush (€112.52) – the most comprehensive suite; extra users and higher plans cost more.
- DACH focus: Sistrix (€119 excl. VAT) – visibility index as the industry standard, deepest German keyword data.
SEO tools for the DACH market
Websites that mainly serve the German-speaking market have particular requirements:
- Sistrix is the undisputed standard with the best-known visibility index. Almost every SEO agency in Germany uses Sistrix as a benchmark.
- Seobility is a German provider from Nuremberg with GDPR compliance and good coverage of German keywords – ideal for SMEs.
- Semrush and Ahrefs have greatly expanded their coverage of Germany, Austria and Switzerland in recent years and now offer very accurate data for the DACH region.
Important note
SEO tools show estimates, not exact data. Search volume, keyword difficulty and traffic estimates vary between providers. Use the data as guidance, not as absolute truth, and complement it with Google Search Console.
Last updated: October 2026