Skip to content
Lastmod

Compare

Lastmod vs Screaming Frog

Screaming Frog is desktop software that crawls a site on your own machine. Lastmod is hosted: it crawls on a schedule, joins the result with your Search Console data, ranks what to fix and measures what happens after the fix.

Start your free trialSee the demo

Screaming Frog

A crawler you run yourself

Lastmod

The evidence layer for your own site

Which fits

Choose Screaming Frog if

  • You want a one-off or deep technical audit you control yourself.
  • Your pages are rendered in the browser and you need that crawled.

Choose Lastmod if

  • You want the findings turned into a ranked list and followed through to a measured result.
  • You would rather not run a crawler yourself every time.

Side by side

What Screaming Frog does comes from its own website. Where that page doesn't name something, the table says “not mentioned”.

  • One ranked task list from your own data

    Lastmod
    YesWith reasoning and confidence
    Screaming Frog
    Not mentioned

  • Measuring what happened after you made a change

    Lastmod
    YesClicks before and after
    Screaming Frog
    Not mentioned

  • Crawling for technical issues

    Lastmod
    YesOn a schedule, hosted
    Screaming Frog
    YesOn your own computer

  • Scheduled crawls

    Lastmod
    Yes
    Screaming Frog
    Yes

  • Search Console data

    Lastmod
    YesFetched every day
    Screaming Frog
    Yes

  • Rendering JavaScript pages

    Lastmod
    NoReads the HTML your server returns
    Screaming Frog
    Yes

  • A free version

    Lastmod
    NoA free trial
    Screaming Frog
    YesUp to 500 URLs

Source: www.screamingfrog.co.uk (opens in a new tab), checked 12 October 2026

What Lastmod does differently

  1. Hosted, nothing to run yourself

    Lastmod crawls your site on a schedule set by your plan and syncs Search Console data every day. Nothing runs on your machine.

  2. A ranked list, not a list of findings

    Lastmod ranks what to fix by expected impact, confidence and effort, and each task shows its reasoning and evidence.

  3. It measures the fix

    After you mark a task done, Lastmod looks for the new text on your page, measures clicks before and after, and says how reliable the measurement is.

  4. It does not run JavaScript today

    Lastmod reads the HTML your server returns. For a page that is rendered in the browser, it says it could not tell.

example-bakery.comTasks
Illustrative data
Quick winMeasuring

Marked done on 10 September 2026. Expect a result around 4 October 2026.

Quick winResult ready

Clicks per day changed by +26% in the 21 days after you marked this task done, compared with the 28 days before that day.

HighResult confidence: High, based on 2,140 impressions.

Clicks per day

A change in clicks doesn't prove causation

Where Screaming Frog is better

What Screaming Frog says about itself

What this page says about Screaming Frog was read from its own website on 12 October 2026. Tools change, so check their site before you decide. Visit Screaming Frog (opens in a new tab)

Other comparisons

See it on your own site

Start the 30-day free trial. Technical checks run as soon as Lastmod has access to your domain and can read your sitemap.

Start your free trialSee the demo

30-day free trial · no credit card · database and hosting in the EU