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ClickHouse vs SEMrush

ClickHouse logo

ClickHouse

Software

Fast open-source column-oriented database for real-time analytics

From
Free
Rated
-
Full reviewWebsite
SEMrush logo

SEMrush

Software

Do SEO, content marketing, competitor research, PPC and social media marketing from just one platfor

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ClickHouse limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems; SEMrush free tier limited to 10 reports per day across all tools
  • They diverge on capability: ClickHouse covers Column-oriented Storage, SEMrush covers Keyword research.

Where they differ

Only the attributes on which ClickHouse and SEMrush actually diverge.

Attributes where ClickHouse and SEMrush differ
AttributeClickHouseSEMrush
Pricing modelUnknownfreemium
PlatformsLinux, macOS, Windows (via Docker)Web, Mobile app
Founded20212008

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ClickHouse

  • Column-oriented Storage
  • Real-time Analytics
  • SQL Support
  • Linear Scalability
  • Data Compression
  • Vectorized Query Execution
  • Approximate Calculations
  • Kafka

Only in SEMrush

  • Keyword research
  • Site audit
  • Competitor analysis
  • Backlink analytics
  • Rank tracking
  • Content marketing
  • PPC research
  • Social media tools

What people use each for

The jobs each tool is most often brought in to do.

ClickHouse

  • Business intelligencenot SEMrush
  • Data warehousingnot SEMrush
  • Real-time analyticsnot SEMrush
  • Reportingnot SEMrush
  • Machine learningnot SEMrush

SEMrush

  • SEO keyword research and competitor analysisnot ClickHouse
  • Website performance tracking and auditingnot ClickHouse
  • Content marketing optimizationnot ClickHouse
  • PPC advertising researchnot ClickHouse

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ClickHouse

  • Limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems
  • Requires upfront schema design discipline with MergeTree engine choices and sort/partition keys
  • Experimental vector search support, not production-ready for vector operations
  • Different query syntax from standard SQL requiring migration planning
  • Limited JOIN capabilities compared to traditional relational databases
  • Migration complexity with 2-4 weeks estimated for data type mapping and query translation

SEMrush

  • Free tier limited to 10 reports per day across all tools
  • Keyword tracking capped at 500 per month on entry tiers (SEO and Starter plans)
  • Additional users cost £45/month per user above base subscription
  • Most advanced features require Advanced plan (£455.67/month), making entry cost significant for small teams

Pricing, plan by plan

ClickHouse

Free

No published plan breakdown. See the ClickHouse review.

SEMrush

Free

No published plan breakdown. See the SEMrush review.

Which should you pick?

Choose ClickHouse if

  • You need column-oriented storage.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via Docker).
  • You also want real-time analytics.
ClickHouse review

Choose SEMrush if

  • You need keyword research.
  • You want to start without paying.
  • You work on Web, Mobile app.
  • You also want site audit.
SEMrush review

Questions people ask

Is ClickHouse or SEMrush better?
Neither clearly leads. ClickHouse starts at Free and SEMrush at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ClickHouse or SEMrush?
ClickHouse starts at Free and SEMrush at Free.
Does ClickHouse or SEMrush run on more platforms?
ClickHouse runs on Linux, macOS, Windows (via Docker). SEMrush runs on Web, Mobile app.
Can I use ClickHouse for free?
Both have a free tier, so you can try either at no cost before committing.
What is ClickHouse best used for?
ClickHouse is most often used for business intelligence, data warehousing, real-time analytics, reporting. Of those, business intelligence and data warehousing are not what SEMrush is typically brought in for.
What can ClickHouse do that SEMrush cannot?
ClickHouse covers Column-oriented Storage, Real-time Analytics, SQL Support, Linear Scalability. SEMrush covers Keyword research, Site audit, Competitor analysis, Backlink analytics.

Answered from the vendors’ own pages

ClickHouse: What is ClickHouse best used for?

ClickHouse is optimized for analytical workloads on large datasets. It excels at fast aggregations and queries, being 10-100x faster than PostgreSQL on large aggregations.

Source
ClickHouse: Does ClickHouse support transactions?

ClickHouse has limited transaction support and expensive UPDATE/DELETE operations. It is not suitable for transactional workloads requiring strict ACID guarantees.

Source
ClickHouse: How does ClickHouse compare to PostgreSQL?

ClickHouse is 10-100x faster for analytics but PostgreSQL is better for transactional workloads. Many teams use both: PostgreSQL for writes via MaterializedPostgreSQL replication to ClickHouse for analytics.

Source
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Related pages

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