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Side-by-side comparison · SEO & Analytics

Ahrefs vs Contentsquare (formerly Hotjar) vs PostHog

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

Ahrefs

4.4

From $29/mo

Contentsquare (formerly Hotjar)

4.3

From From $39/mo

PostHog

4.2

From $0/mo base

Comparing 3 tools, the maximum.

At a glance

Best overall

Pick it if: Marketers and business owners who want to see what competitors rank for and find keywords worth chasing.

Pick it if: Store owners, marketers and UX teams who want to see and hear why visitors leave, with surveys alongside the recordings.

Pick it if: Founders and product teams with a web app or SaaS who want analytics, replays and testing in one tool.

Overview

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
In one lineKeyword research, backlink checks and site audits in one toolkit.Heatmaps, session replays and surveys that show why visitors leave, with AI summaries.Product analytics, session replays, A/B tests and surveys in one tool, with an AI analyst.
Pricing modelFreemiumFreemiumFreemium
Starting price$29/moFrom $39/mo$0/mo base
Free plan Yes Yes Yes
Works with Claude Code Yes Yes Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Overall rating4.4Winner4.34.2
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
3.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
5.0
4.5
5.0
Output qualityHow good the results are before you fix them.
4.5
4.0
4.5
Value for moneyWhat you get for the price, including the free plan.
3.5
4.5
4.5
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.0
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Access & platform
Free plan Yes Yes Yes
Mobile app No No No
Desktop app No No Yes
Browser extension Yes No No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No Yes
AI abilities
Works with your files Yes No No
Understands images No––
Makes images No No No
Makes video No No No
Writes code No No Yes
Runs agents or automations No No Yes
Learns your brand or style No––
Works in many languages Yes Yes Yes
Capabilities score8/ 176/ 1710/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Plans

Ahrefs Free

Free

Checking the health and backlinks of a site you own.

FreeOur pick

Free

Most small business websites.

Free

Free

Small apps and getting started.

Starter

$29/mo

Occasional keyword research on a tight budget.

Growth

From $39/mo billed yearly, or $49 monthly

Businesses that want AI summaries and longer history.

Pay as you goOur pick

$0/mo base, then per use

Growing apps that outgrow the free limits.

LiteOur pick

$129/mo

A business doing its own SEO seriously.

Pro

Custom

Teams running conversion work across many sites.

Boost

$250/mo plus usage

Teams that need SSO enforcement or HIPAA.

Standard

$249/mo

Freelancers and small agencies.

Enterprise

Custom

Large companies.

Scale

$750/mo plus usage

Larger organisations.

Advanced

$449/mo

Agencies and in-house teams with many sites.

Enterprise

$2,000/mo plus usage

Big companies.

Enterprise

$1,499/mo billed yearly

Large companies that need SSO and unlimited data.

Which plan to pickStart on Ahrefs Free to audit your own site. If you want to research competitors and keywords every week, go straight to Lite; the Starter plan's credits run out too quickly to be useful for more than the odd lookup. Each plan includes one user, and extra seats cost $40 to $80 a month.Start on Free. For most small sites it does what Hotjar's paid plans used to. Take the 15-day Growth trial to see if the AI summaries save you time before paying. Survey responses are a separate product with their own Growth plan from $79 a month.Start free. Add a card to move to pay as you go when you need more projects or longer history, and set billing limits on each product so nothing runs away. The platform packages only matter for compliance or big teams.

Key features

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Standout features
  • Site Explorer
  • Keywords Explorer
  • Site Audit
  • Rank Tracker
  • Brand Radar
  • MCP server
  • Heatmaps
  • Session replay
  • Surveys and feedback
  • Funnels and journeys
  • Sense AI
  • MCP connection
  • Product analytics
  • Session replay
  • A/B tests and feature flags
  • Surveys
  • PostHog AI
  • MCP server and wizard

Pros and cons

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Pros
  • The most trusted backlink index in the industry
  • Cleaner and faster to learn than Semrush
  • Site Audit explains problems simply
  • Free plan covers your own site properly
  • Official MCP server for Claude on Lite and above
  • Huge free plan at 200,000 sessions a month
  • Heatmaps, replays, funnels and surveys in one place
  • Polished, easy interface
  • AI summaries save watching hours of recordings
  • MCP connection works on the free plan
  • Huge free tier with no seat fees
  • Analytics, replays, testing and surveys in one tool
  • Clear, public per-use pricing
  • Open source core you can self-host
  • Strong AI assistant and Claude Code support
Cons
  • Lite at $129 a month is steep for a small business
  • The Starter plan's credits run out fast and it has no API or MCP access
  • No free trial for the paid plans
  • Extra users cost $40 to $80 a month each
  • Traffic figures are estimates and can be well off for small sites
  • The Hotjar name is gone and new Hotjar accounts are closed
  • Overlaps with Microsoft Clarity, which is free and unlimited
  • AI features need a paid plan
  • Surveys, product analytics and replays are separate products with separate prices
  • Pro and Enterprise prices aren't published
  • So many products and settings that it can overwhelm small teams
  • Overkill if you only want website visitor numbers
  • Usage bills need billing limits to stay predictable
  • Setup works best with a developer or Claude Code

Who each one is for

AttributeAhrefsContentsquare (formerly Hotjar)PostHog
Best for
  • Keyword research
  • Competitor traffic estimates
  • Backlink analysis
  • Technical site audits
  • Finding topics competitors cover that you don't
  • Seeing why visitors leave a page
  • Heatmaps and session replays
  • On-site surveys and feedback
  • Testing landing pages for ad campaigns
  • Seeing how people use your app
  • Finding where sign-ups and checkouts drop off
  • A/B testing new features and pages
  • Replacing several separate analytics tools
You'll find it used by
  • SEO specialists
  • Marketers
  • Agencies
  • Content teams
  • Store owners
  • Marketers
  • UX designers
  • Agencies
  • Founders
  • Product teams
  • Developers
  • SaaS companies

Questions people ask

Which is better, Ahrefs, Contentsquare (formerly Hotjar) or PostHog?

Ahrefs scores highest overall in our ratings (Ahrefs 4.4/5, Contentsquare (formerly Hotjar) 4.3/5 and PostHog 4.2/5). Ahrefs is best for keyword research and competitor traffic estimates. Contentsquare (formerly Hotjar) is best for seeing why visitors leave a page and heatmaps and session replays. PostHog is best for seeing how people use your app and finding where sign-ups and checkouts drop off.

Which is cheaper, Ahrefs, Contentsquare (formerly Hotjar) or PostHog?

Ahrefs: There's a free plan, and paid plans start at $29/mo. Contentsquare (formerly Hotjar): There's a free plan, and paid plans start at From $39/mo. PostHog: There's a free plan, and paid plans start at $0/mo base.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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