Skip to content
Academy
Marketing Academy · Field Work●Marketing Tools
All projects·From: Top 10 SEO Tools
MiniHead-to-Head· 25 minutes

Ahrefs or Screaming Frog: Picking the Right Crawler Before a Migration

Flipkart

Objective: Given a mid-size ecommerce migration with a fixed one-tool budget this month, decide whether Ahrefs or Screaming Frog SEO Spider is the right choice to catch redirect and technical issues before launch, using the lesson's four-job framework.

You're on Flipkart's SEO team ahead of a category-page URL restructure touching roughly 12,000 pages. You can expense one new SEO tool this month, not two.

Match each tool's actual core job, not its marketing, to what this migration needs: a full crawl of every URL checking redirects, status codes, and duplicate titles before launch.

Before you start

What you'll need

Free path (everything below is enough to finish)

Screaming Frog SEO Spider
FreemiumCrawl the staging site for redirects, status codes, and duplicate titles

Free tier covers up to 500 URLs, purpose-built for exactly this job

Google Sheets
FreeTrack the fix list exported from the crawl

Free, no account friction for a shared fix-priority list

Paid upgrades (optional, faster/deeper)

Only upgrade Screaming Frog once the site crosses 500 URLs; Ahrefs is a different job (backlinks and keywords) and isn't a substitute purchase for this task.

Screaming Frog SEO Spider(optional)
FreemiumUnlimited-URL crawl once the site exceeds the 500-URL free cap

259 GBP/yr, still the job-matched tool, just removes the URL ceiling

The process

1 step

Step 01 of 01

Matching a tool's core job to the actual task instead of its brand recognition

The lesson splits SEO tools into four distinct jobs: keyword research, technical site audits, rank tracking, and backlink/competitor analysis. Ahrefs' core strength is its roughly 30-trillion-link backlink index; Screaming Frog is a desktop crawler built specifically to walk every URL on a site and report redirects, status codes, and duplicate content.

The migration needs every one of 12,000 URLs crawled for broken redirects and duplicate titles before launch. Ahrefs or Screaming Frog SEO Spider is the better fit this month?

Screaming Frog SEO Spider— Screaming Frog SEO Spider desktop app, Spider mode pointed at the staging URL list

Procedure

  1. List the actual job: full-site crawl for redirects, status codes, duplicate titles, not backlink or keyword research
  2. Open Screaming Frog's free tier and crawl the staging site (free covers up to 500 URLs, enough to sample-test the migration logic before paying)
  3. Filter the Response Codes tab for 3xx and 4xx, export the list of broken and looping redirects
  4. Filter Page Titles for Duplicate, export the list of pages needing a unique title before launch
  5. Compare cost: Screaming Frog's paid tier is 259 GBP/yr for unlimited URLs; Ahrefs Site Audit access sits inside a $129/mo plan built around backlink and keyword tools not needed this month
Sample output
Staging crawl, sample export (18 of 412 flagged rows)

REDIRECT CHAINS (3xx loops)
  /electronics/mobiles-old -> /electronics/mobiles -> /electronics/mobiles/  (2-hop loop)
  ...16 more rows

DUPLICATE TITLES
  /electronics/mobiles/samsung <-> /electronics/mobiles/samsung-phones  (identical title tag)
  ...14 more rows

Healthy

All 412 flagged URLs fixed or collapsed to a single final destination before the migration goes live.

Unhealthy

Redirect chains ship live, each hop costs crawl budget and link equity, and duplicate titles confuse which page Google indexes.

What this means

Screaming Frog's crawler is purpose-built for this exact job at a fraction of Ahrefs' cost, because the job is crawling, not backlink or keyword analysis. Ahrefs earns its subscription later, once ongoing backlink and competitor tracking becomes the priority.

So what do I do about it?

SymptomActionEffort
Migration budget going to the wrong-shaped toolMatch the tool to the job category first, price second30 min
YouYou can do this yourself, no engineering access required.

Final deliverable

A prioritized fix list of every redirect chain and duplicate title found in the staging crawl, ready for a developer ticket before the migration goes live.

See a reference example
Sample output
Airbnb, staging migration crawl (excerpt)

REDIRECT CHAINS
  1. /rooms/old-listing-id -> /rooms/listing-id -> /rooms/listing-id/details (2-hop loop)
  ...9 more rows

DUPLICATE TITLES
  1. /experiences/tokyo <-> /experiences/tokyo-city (identical title tag)
  ...6 more rows

Fix priority: collapse all loops to a single 301 hop before the redirect map ships.

Success criteria

You're done when you can:

  • Correctly identifies Screaming Frog as the job-matched tool for a pre-migration crawl
  • Produces a complete list of redirect chains and duplicate titles from the free-tier crawl
  • Prices out the paid-tier decision only if URL count exceeds the free 500-URL cap