Semrush vs Siteimprove

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Semrush is the stronger AI pick in SEO Tools: it has a visibility score of 64.3 versus 0.6 for Siteimprove, and ranks ahead in 100% of the answers that name both.

Choose Semrush if…

You want the brand AI engines rank higher (64.3 vs 0.6)
You prefer a larger, established vendor (1,001–5,000 employees)
Widely recommended as a top-tier all-in-one platform for broad suites
Strong keyword research, competitor analysis, and site auditing

Choose Siteimprove if…

AI answers describe it more positively (50% vs 49% positive)
You need ISO/IEC 27001:2022 coverage

AI visibility side by side

Latest weekly run · Nov 2

Metric	Semrush	Siteimprove
Visibility score	64.3%	0.6%
Change vs last week	New	New
Rank in SEO Tools	#1	#39
Share of voice	12.3%	0.4%
Mentions this run	63	2
Positive in AI answers	49%	50%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Semrush 0pp · Siteimprove 0pp over 0 weekly runs.

Engine by engine

Semrush leads on 3 of 3 engines

ChatGPT

77%

0.9%

AI Mode

64.3%

Perplexity

51.7%

0.9%

SemrushSiteimprove

Head to head in AI answers

2 engine answers name both brands

2Semrush ranked higher

0Siteimprove ranked higher

Prompt	Engine	Semrush	Siteimprove
Which SEO Tools vendors do analysts recommend?	ChatGPT	#1	#8
Which SEO Tools vendors do analysts recommend?	Perplexity	#1	#11

Features, pricing & fit

Dimension	Semrush	Siteimprove
Pricing model	Flat tiers	—
Entry price	Free; paid from $139 / mo	—
Free plan	Yes	—
Integrations	—	40+
Compliance	—	ISO/IEC 27001:2022
Support	Help Center and Basic Onboarding, Enterprise SLA and 24/7 support, Dedicated account manager	Platform onboarding, Accessibility testing by certified experts, Consulting in digital accessibility and digital marketing
Founded	2008	2003
Headquarters	Boston, MA	Bloomington, Minnesota, USA
Employees	1,001–5,000	201–500
Funding	IPO	Minority investment led by Summit Partners · $55M raised
Best for	Freelancers and small businesses through to agencies and enterprises managing multiple brands, regions and teams.	Organizations that must balance regulatory compliance with search and content performance.