18.3
Contentsquare is a digital-experience analytics service from Contentsquare, a company founded in 2012 and headquartered in France.
Free planAndroidiOSWeb
Best Website Optimization Tools in 2026
Website optimization tools help you inspect site performance, search visibility, visitor behavior and conversion changes. This category includes services with site audits, A/B testing, page-speed monitoring and tracked-site controls. Check Android support before choosing a tool for phone work. Platforms in this category can include web, API, iOS, Android, browser extensions and self-hosted setups. Compare the free…
27.9
AB Tasty provides experimentation, personalization, feature management, mobile app testing and analytics for web and mobile teams.
AndroidiOSWeb
37.8
Fullstory is a behavioral analytics platform for businesses studying customer experiences across websites, web apps, and mobile apps.
Free planAndroidiOSWeb
- 4
Pingdom
Pingdom is a paid website and server monitoring service available through web, Android, iOS, and an API.
AndroidiOSWebAPI7.8From $16.50 a month - 5
Screaming Frog SEO Spider
Screaming Frog SEO Spider is a website crawler for technical SEO audits, with tools to find issues that may affect search visibility and user experience.
Free planAPILinuxmacOSSelf-hosted7.8Free plan - 6
Ahrefs
Ahrefs is a web-based SEO platform for keyword research, rank tracking, site audits, backlink analysis, and competitor research.
Free planWebAPI7.6From $29 a month - 7
Crazy Egg
Crazy Egg is a website analytics platform for examining visitor behavior and conversion activity.
Free planWebAPIExtension7.6From $348 a year - 8
Inspectlet
Inspectlet is a web-based analytics platform that records visitor sessions so teams can review mouse movement, scrolling, clicks, and keypresses.
Free planWeb7.6From $39 a month - 9
Sitebulb
WebExtensionmacOSWindows7.5 - 10
Semrush
Semrush provides marketing toolkits and standalone apps, with capabilities for keyword research, rank tracking, site audits, backlink analysis, and competitor research.
Free planAPI7.3From $10 a month - 11
Sitechecker
Sitechecker is a paid SEO platform from a maker headquartered in Gibraltar.
WebAPIExtension7.2From $83 a month - 12
Convert Experiences
Convert Experiences is an A/B testing and personalization suite for web and mobile.
AndroidiOSWebAPI7.1From $399 a month - 13
Kameleoon
Kameleoon provides experimentation tools for marketing, product, and engineering teams working on front-end, back-end, and in-app experiences.
AndroidiOSWebAPI7.1From $495 a month - 14
Lighthouse
Lighthouse is a free, open-source tool for automated web page audits.
Free planWebAPIExtensionLinux7.1Free plan - 15
Microsoft Clarity
Microsoft Clarity is a behavior analytics tool for websites and apps.
Free planAndroidiOSExtension7.0Free plan - 16
Smartlook
Smartlook combines session recordings with event-based analytics for websites and mobile apps, on web, iOS, and Android.
Free planAndroidiOSWebAPI7.0Free plan - 17
GTmetrix
GTmetrix tests website performance and helps explain why pages are slow and what to optimize.
Free planWebAPI6.8From $4.99 a month - 18
Lucky Orange
Web6.8From $384 a year - 19
Glassbox
AndroidiOSWebAPI6.5 - 20
VWO Testing
VWO Testing helps teams create, target, measure, analyze, and roll out web experiments.
AndroidiOSWebAPI6.5 - 21
Google Search Console
Google Search Console helps site owners monitor how their sites appear in Google Search and address crawling, indexing, and other site issues.
Free planWebAPI6.4Free plan - 22
Optimizely Experimentation
Free planAndroidiOSWeb6.2Free plan - 23
Botify
WebAPIExtension6.0 - 246.0From $90 a month
- 25
Oncrawl
Oncrawl is a technical SEO analysis platform that combines crawl data, server logs, and performance metrics to help teams prioritize improvements to…
WebAPI5.9
Choosing well
Check where it runs
Platforms can include web, API, iOS, Android, browser extensions and self-hosted deployments. Check the listed platform before signing up, especially if you need to work from an Android phone or tablet.
A web service may suit a mixed-device team, while an API or self-hosted option may fit an existing workflow.
Compare free access and trials
A free plan is available from tools in this category, while paid services can list pricing on request. Check whether the free option covers the sites and features you need.
Trial periods are offered by tools such as Convert Experiences, DebugBear and GTmetrix. Confirm the trial length and what happens when it ends.
Match the optimization job
Compare the tool's optimization focus before choosing. Site audits, A/B testing, visitor-session analysis and page-speed monitoring address different tasks.
Google Search Console, Ahrefs and Botify are examples of tools associated with search and site analysis, while Convert Experiences and AB Tasty focus on experiment work.
Review site tracking
Check how tracked sites are handled and whether the limit fits your work. This matters when you manage more than one website or separate projects.
Look at the site's audit coverage and page-speed monitoring details alongside tracked-site settings.
Plan phone use
If you need to review reports or make changes away from a computer, verify Android support directly in the tool's platform details. iOS availability can differ as well.
A browser extension, API or self-hosted setup may change how the service fits your phone, tablet or desktop workflow.
Questions people ask
Do website optimization tools have Android apps?
Android availability varies. Check the platform details for the tool; listed options in this category can include Android, iOS, web, API, extensions and self-hosted setups.
Can I use a free plan?
A free plan is offered by tools in this category, including Google Search Console and Fullstory. Check the plan's scope before relying on it.
Are free trials available?
Trial access is offered by tools in this category. Convert Experiences lists a 15-day trial, while DebugBear and Fullstory list 14-day trials.
What should I compare first?
Compare free access, paid-from details, optimization focus, site-audit coverage, A/B testing, page-speed monitoring and tracked sites.
Do tools support self-hosting?
Self-hosted deployment is a platform option in this category. Check the individual tool's platform details to confirm whether it supports that setup.