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Ahrefs vs PostHog

Ahrefs logo

Ahrefs

Software

Everything you need to rank higher & get more traffic

From
$29/month
Rated
-
Full reviewWebsite
PostHog logo

PostHog

Software

The single platform to analyze, test, observe, and deploy new features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only PostHog has a free tier, so it costs nothing to try first.
  • Each has a real cost: Ahrefs the entry Lite plan is $129 a month and caps projects at 5 and tracked keywords at 750; PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • They diverge on capability: Ahrefs covers Site Explorer, PostHog covers Product analytics.

Where they differ

Only the attributes on which Ahrefs and PostHog actually diverge.

Attributes where Ahrefs and PostHog differ
AttributeAhrefsPostHog
Starting price$29/monthFree
Pricing modelUnknownusage-based
Free tierNoYes
PlatformsWebWeb, Ios, Android, Api
Founded20102020

Identical on both: 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 Ahrefs

  • Site Explorer
  • Keywords Explorer
  • Site Audit
  • Rank Tracker
  • Content Explorer
  • Competitive analysis
  • Backlink checker
  • Keyword research

Only in PostHog

  • Product analytics
  • Session recording
  • Feature flags
  • A/B testing
  • Heatmaps
  • SQL access
  • Data warehouse
  • Apps platform

Both cover

  • Cloud deployment

What people use each for

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

Ahrefs

  • SEO researchnot PostHog
  • Competitor analysisnot PostHog
  • Content planningnot PostHog
  • Backlink analysisnot PostHog
  • Rank trackingnot PostHog

PostHog

  • Product analyticsnot Ahrefs
  • Feature experimentationnot Ahrefs
  • User behavior trackingnot Ahrefs
  • A/B testingnot Ahrefs
  • Debug production issuesnot Ahrefs

Where each one falls short

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

Ahrefs

  • The entry Lite plan is $129 a month and caps projects at 5 and tracked keywords at 750
  • Crawl credits are metered by tier, from 100,000 on Lite to 1,500,000 on Advanced
  • Enterprise at $1,499 a month requires an annual commitment
  • Brand Radar AI, custom prompts and Content Kit are separate add-ons starting at $199, $50 and $99 a month
  • The $29 Starter plan covers search and competitive research basics rather than the full toolset

PostHog

  • The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • Accounts without a card on file are limited to 1 project; adding one raises it to 6
  • Data retention is 1 year until a card is added, which extends it to 7 years
  • Support is community-only until the account is on a paid plan
  • Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier

Pricing, plan by plan

Ahrefs

$29/month
  • Starter$29/month
    • Core keyword research
    • Backlink analysis
    • Competitor research
  • Lite$129/month
  • Standard$249/month
  • Advanced$449/month

PostHog

Free
  • FreeFree
    • 1M events/month
    • 5K sessions/month
    • Unlimited users
  • Paid$undefined/month
    • $0.00031/event
    • $0.005/session
    • Advanced permissions
  • Enterprise$undefined/month
    • SAML SSO
    • Advanced security
    • Dedicated support

Which should you pick?

Choose Ahrefs if

  • You need site explorer.
  • You also want keywords explorer.
Ahrefs review

Choose PostHog if

  • You need product analytics.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want session recording.
PostHog review

Questions people ask

Is Ahrefs or PostHog better?
Neither clearly leads. Ahrefs starts at $29/month and PostHog at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ahrefs or PostHog?
PostHog has a free tier; the other does not. Paid plans start at $29/month for Ahrefs and Free for PostHog.
Does Ahrefs or PostHog run on more platforms?
Ahrefs runs on Web. PostHog runs on Web, Ios, Android, Api.
Can I use PostHog for free?
Yes. PostHog has a free tier, so you can try it without paying. Ahrefs starts at $29/month.
What is Ahrefs best used for?
Ahrefs is most often used for seo research, competitor analysis, content planning, backlink analysis. Of those, seo research and competitor analysis are not what PostHog is typically brought in for.
What can Ahrefs do that PostHog cannot?
Ahrefs covers Site Explorer, Keywords Explorer, Site Audit, Rank Tracker. PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Both handle Cloud deployment.

Answered from the vendors’ own pages

Ahrefs: What are Ahrefs' main features?

Ahrefs' three main features are Site Explorer (for organic performance), Keywords Explorer (for keyword research), and Content Explorer (for content discovery). The platform includes backlink analysis, competitor research, technical SEO audits, rank tracking, and content workflows.

Source
Ahrefs: What is the size of Ahrefs' backlink database?

Ahrefs maintains a database of 28 trillion internal backlinks and 35 trillion external backlinks that are updated frequently, providing the depth and freshness of link data that differentiates it from competitors.

Source
Ahrefs: What is Ahrefs' pricing?

Ahrefs pricing starts at $29/month for Starter plan, $129/month for Lite, $249/month for Standard, $449/month for Advanced, and $1,499/month for Enterprise, with annual discounts available.

Source
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