Semrush vs Similarweb
Semrush vs Similarweb, compared side by side on 16 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Semrush is on 60/100 and Similarweb on 64/100.
Where each one leads
Semrush
- headcount: 2,245 against 1,271
- LinkedIn following: 550,363 against 92,122
Similarweb
- our overall score: 64/100 against 60/100
- agent readiness: 58/100 against 50/100
- funding raised: $298M against $40.0M
At a glance
| Measure | Semrush | Similarweb |
|---|---|---|
| What it is | Semrush is a leading online visibility management SaaS platform offering over 55 products and tools to help 10,000,000 digital marketers worldwide improve their online marketing results and workflow. | Similarweb provides digital intelligence data and analytics to help businesses understand market trends, competitor strategies, and consumer behavior. |
| Category | SEO Tools | Enterprise, Intelligence, Web, Web Analytics |
| Sells toBusiness model | B2B | B2B |
| Offering | Not published | Software |
| Founded | 2008 | 2007 |
| Headquarters | Not published | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Semrush | Similarweb |
|---|---|---|
| Employees | 2,245 | 1,271 |
| Headcount growthLast 12 months | Not published | -1.1% |
| Total funding | $40.0M | $298M |
| Latest round | Not published | Secondary Transaction |
| Valuation | Not published | $400M |
| LinkedIn followers | 550,363 | 92,122 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Semrush | Similarweb |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 64/100 |
| Traction | 58/100 | 60/100 |
| Team | Not published | 70/100 |
| Community | 8/100 | Not published |
| Search visibility | 46/100 | 67/100 |
| Quality | 78/100 | 65/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (50/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 92/100 | 89/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Semrush | Similarweb |
|---|---|---|
| Hosting | Google Cloud | AWS |
| CDN | Not detected | CloudFront |
| Analytics | Not detected | Google Tag Manager |
| Support stack | Intercom | Zendesk |
Product and pricing
| Measure | Semrush | Similarweb |
|---|---|---|
| Key features | Traffic & Market Analysis, Search Engine Optimization, Content Marketing, AI Visibility Tracking, Social Media Management, Advertising Optimization | Not published |
What users say
| Measure | Semrush | Similarweb |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 1 positive, 3 negative across 6 threads |
“Similarweb — best for traffic intelligence. See any website's estim”r/Superframeworks
Semrush vs Similarweb: common questions
Which is better, Semrush or Similarweb?
On our 0-100 score Similarweb rates higher (64/100 against 60/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 16 data points above: read the rows that match what you are buying for.
How do Semrush and Similarweb compare on the numbers?
Semrush leads on headcount (2,245 against 1,271), LinkedIn following (550,363 against 92,122). Similarweb leads on our overall score (64/100 against 60/100), agent readiness (58/100 against 50/100), funding raised ($298M against $40.0M).
What do real users say about Semrush and Similarweb?
Similarweb: 1 positive and 3 negative mentions across 6 Reddit threads we track, mostly in r/Superframeworks.
Read the full Semrush review and pricing or the Similarweb review and pricing. You can also browse other Semrush alternatives we track.