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Side-by-side comparison · SEO & Analytics

Ahrefs vs Microsoft Clarity vs Screaming Frog SEO Spider

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

Microsoft Clarity

4.3

Free to start

Screaming Frog SEO Spider

4.0

From £199/user/yr

Comparing 3 tools, the maximum.

At a glance

Ahrefs

4.4
Best overall

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

Microsoft Clarity

4.3
Best value

Pick it if: Store owners and marketers who want to know why visitors aren't converting, without paying for it.

Screaming Frog SEO Spider

4.0

Pick it if: Anyone who needs a thorough technical check of a site, especially before or after a redesign or migration.

Ahrefs scores highest overall, but Microsoft Clarity gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
In one lineKeyword research, backlink checks and site audits, all in one toolkit.Free heatmaps and session replays that show where visitors get stuck.Crawls your whole site the way Google does and lists what's broken.
Pricing modelFreemiumFreeFreemium
Starting price$29/moFree£199/user/yr
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.

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Overall rating4.4Winner4.34.0
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
2.5
FeaturesHow much it can do, and how well the pieces fit together.
5.0
4.0
4.5
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
5.0
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.

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Access & platform
Free plan Yes Yes Yes
Mobile app No– No
Desktop app No No Yes
Browser extension Yes No No
API access Yes Yes No
Teams & business
Team workspace Yes Yes No
Enterprise plan or SSO Yes No No
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes No Yes
Understands images No No No
Makes images No No No
Makes video No No No
Writes code No No No
Runs agents or automations No– No
Learns your brand or style No No No
Works in many languages Yes Yes Yes
Capabilities score8/ 175/ 175/ 17

Pricing

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

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Plans

Ahrefs Free

Free

Checking the health and backlinks of a site you own.

FreeOur pick

Free

Every website and online store.

Free

Free

Small sites and one-off checks.

Starter

$29/mo

Occasional keyword research on a tight budget.

Paid licenceOur pick

£199/user/yr

Agencies and anyone with a site over 500 pages.

LiteOur pick

$129/mo

A business doing its own SEO seriously.

Standard

$249/mo

Freelancers and small agencies.

Advanced

$449/mo

Agencies and in-house teams with many sites.

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.There's one plan and it's free. Microsoft says it's free forever with no traffic limits. Install the tag through Shopify, WordPress or Google Tag Manager and it starts recording within minutes.The free version is enough for most small businesses because it includes every feature and only caps the crawl at 500 pages. Buy a licence when your site or your clients' sites go past that. The price is listed in pounds with dollar and euro options at checkout.

Key features

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Standout features
  • Site Explorer
  • Keywords Explorer
  • Site Audit
  • Rank Tracker
  • Brand Radar
  • MCP server
  • Session recordings
  • Heatmaps
  • Copilot
  • Smart events and funnels
  • AI visibility
  • MCP server
  • Full site crawl
  • JavaScript rendering
  • Google integrations
  • AI during crawl
  • Crawl comparison
  • Scheduling and command line

Pros and cons

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Pros
  • The most trusted backlink index in the industry
  • Cleaner and faster to learn than Semrush
  • Site Audit explains problems in plain language
  • Free plan covers your own site properly
  • Official MCP server for Claude on Lite and above
  • Completely free with no traffic or team limits
  • Session replays and heatmaps that match the paid tools
  • Copilot turns piles of recordings into plain findings
  • Easy installs for Shopify, WordPress and Tag Manager
  • MCP server for Claude
  • The most complete technical crawl available
  • Free version includes every feature up to 500 pages
  • Crawl comparison makes migrations far safer
  • Connects to Google data and AI models during the crawl
  • Runs on your own computer, so your data stays with you
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
  • Your visitor data goes to Microsoft, which some businesses won't accept
  • Recordings keep for 30 days, so you can't go back far
  • The interface is rougher than Hotjar and filters take some learning
  • Can slow a page slightly if it's already heavy with scripts
  • Dated interface that assumes you know technical SEO terms
  • Desktop only, and big crawls need a lot of memory
  • No cloud dashboard or scheduled reports for clients
  • One licence per user adds up for a team

Who each one is for

AttributeAhrefsMicrosoft ClarityScreaming Frog SEO Spider
Best for
  • Keyword research
  • Competitor traffic estimates
  • Backlink analysis
  • Technical site audits
  • Content gap analysis
  • Finding checkout drop-offs
  • Watching real user sessions
  • Scroll and click heatmaps
  • Spotting broken buttons
  • Finding broken links
  • Checking redirects after a migration
  • Auditing titles and headings
  • Exporting a full page list
You'll find it used by
  • SEO specialists
  • Marketers
  • Agencies
  • Content teams
  • Store owners
  • Marketers
  • Product teams
  • Agencies
  • Technical SEOs
  • Agencies
  • Developers
  • Web designers

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability. The "Visit" buttons may use affiliate links, which never affect a score.

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