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Lastmod vs Semrush

Semrush is a broad suite of research, optimization and tracking tools. Lastmod is narrower: it ranks what to change on your own site, then measures what happens afterwards.

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Semrush

The broad marketing suite

Lastmod

The evidence layer for your own site

Which fits

Choose Semrush if

  • You need keyword, competitor or backlink research beyond the queries you already appear for in Search Console.
  • You want content, PR, rank tracking and reporting tools in one place.

Choose Lastmod if

  • You mostly need to know what to change on your own site next, and what happened afterwards.
  • You want each recommendation to show its reasoning and how sure it is.

Side by side

What Semrush 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
    Semrush
    Not mentioned

  • Measuring what happened after you made a change

    Lastmod
    YesClicks before and after
    Semrush
    Not mentioned

  • Technical site audit

    Lastmod
    YesFewer checks than Semrush lists
    Semrush
    YesA broad set of checks

  • AI visibility

    Lastmod
    YesChatGPT and Google AI Mode
    Semrush
    Yes

  • Keyword research across the market

    Lastmod
    NoOnly your Search Console queries
    Semrush
    Yes

  • Backlink analysis

    Lastmod
    No
    Semrush
    Yes

  • Rank tracking

    Lastmod
    No
    Semrush
    Yes

Source: www.semrush.com (opens in a new tab), checked 12 October 2026

What Lastmod does differently

  1. One ranked task list from your own data

    Lastmod reads your site and your Search Console data and gives you tasks, ranked, each with its reasoning, evidence, confidence and expected impact.

  2. It measures what happened after you acted

    After you mark a task done, Lastmod looks for the new text on your page, compares clicks before and after, and says how reliable the measurement is. When there is too little traffic it says “not enough data”.

  3. Limited outside data, no market database

    Lastmod uses limited outside search-result and advertising data, only around the queries already in your own Search Console. These are dated observations, not an index. It has no keyword database, no rank tracking and no backlink analysis.

  4. AI answers: two assistants, no verdict on why

    Lastmod counts how often ChatGPT and Google AI Mode mention your website or use it as a source, for questions you approve. It measures those two assistants only, and it does not say why a number goes up or down.

  5. It never edits your site

    Lastmod tells you what to change and why. You make the change yourself.

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 Semrush is better

  • Data about the market, not just your site

    Keyword research, competitor analysis and backlink analysis cover the market. Lastmod looks outside your site only at the queries already in your Search Console.

    Source: www.semrush.com (opens in a new tab)

  • Breadth

    Content creation, digital PR, rank tracking and marketing reports sit in the same suite. Lastmod does one job.

    Source: www.semrush.com (opens in a new tab)

  • A site audit with a wide set of checks

    Semrush's Site Audit lists checks such as schema gaps and crawlability blockers that Lastmod does not run today.

    Source: www.semrush.com (opens in a new tab)

What Semrush says about itself

  • Semrush groups its tools into research (keyword research, competitor analysis, backlink analysis, local search visibility, AI visibility tracking), create and optimize (content creation, technical site audit, digital PR) and track (rank tracking, marketing reports).

    Source: https://www.semrush.com/features/ (opens in a new tab), checked 12 October 2026

  • Its Site Audit crawls a site for technical issues such as broken links, slow pages, schema gaps and crawlability blockers.

    Source: https://www.semrush.com/features/ (opens in a new tab), checked 12 October 2026

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

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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.

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