Best LLM SEO Checking Tools in 2026: 8 Tools Compared

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By the Ainotely Editorial Team.
Updated October 2026. 9 min read. Prices and features researched from each vendor's official pages and app store listings at time of writing.
Best LLM SEO Checking Tools
Quick picks
  1. 1Frase AI Visibility Checker logo
    Frase AI Visibility CheckerFree first LLM check
    Visit
  2. 2Semrush AI Search logo
    Semrush AI SearchChecking inside an SEO suite
    Visit
  3. 3Ahrefs Brand Radar logo
    Ahrefs Brand RadarBrand checks in AI answers
    Visit
  4. 4Otterly logo
    OtterlyOngoing AI visibility checks
    Visit
  5. 5Peec AI logo
    Peec AIAI checks with sentiment
    Visit
Short version:
In this guide Quick comparisonThe best llm seo checking toolsHow we picked theseChecking LLM SEO the useful wayFrequently asked questionsSources

Quick comparison

ProductIdeal forPrice fromFree version
Frase AI Visibility CheckerFree first LLM checkFreeYesVisit
Semrush AI SearchChecking inside an SEO suiteSee websiteFree trialVisit
Ahrefs Brand RadarBrand checks in AI answersSee websiteFree trialVisit
OtterlyOngoing AI visibility checksSee websiteFree trialVisit
Peec AIAI checks with sentimentSee websiteFree trialVisit
SE Ranking AI SearchAgency checks with classic ranksSee websiteFree trialVisit
ProfoundDeep AI visibility checksSee websiteFree trialVisit
ZipTieLow-cost per-check readingsSee websiteFree trialVisit

The best llm seo checking tools

We compared LLM SEO checking tools on one-off check quality, prompt handling, platform coverage and price. A checker answers whether AI engines name you today, while a tracker answers whether that changed over time. Our pick for a first check is the Frase free checker, with Otterly as the ongoing-checking alternative.

Frase AI Visibility Checker logo
#1

Frase AI Visibility Checker

Ideal for: Free first LLM check

Frase AI Visibility Checker website
frase.io homepage

Frase AI Visibility Checker reads your domain and returns a ChatGPT result without signup, with Perplexity and Gemini available with email. A free GEO score rates one page for quotability. That makes it the best first check. Ongoing daily tracking needs a paid Frase plan.

For most readers, the deciding question with Frase AI Visibility Checker is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • Free domain check for ChatGPT
  • Perplexity and Gemini with email
  • GEO score
  • Full tracking needs a paid plan
  • Single-page scope
Ahrefs Brand Radar logo
#3

Ahrefs Brand Radar

Ideal for: Brand checks in AI answers

Ahrefs Brand Radar website
ahrefs.com homepage

Ahrefs Brand Radar checks brand mentions in AI answers with competitor views and SEO context. That depth suits SEO-led teams checking AI presence alongside rankings. Add-on pricing applies, and coverage varies by region, so verify your markets.

For most readers, the deciding question with Ahrefs Brand Radar is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • Brand mention checks
  • Competitor views
  • SEO data
  • Add-on pricing
  • Coverage varies by region
Otterly logo
#4

Otterly

Ideal for: Ongoing AI visibility checks

Otterly checks AI visibility across ChatGPT, Perplexity and AI overviews with sentiment views. Recent pricing reports put entry plans near 29 dollars a month for a limited prompt set. That low friction makes it a good step up from a free checker to ongoing monitoring.

For most readers, the deciding question with Otterly is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • Checks across ChatGPT, Perplexity and AI overviews
  • Sentiment
  • Prompt limits on lower tiers
  • Coverage varies by plan
Peec AI logo
#5

Peec AI

Ideal for: AI checks with sentiment

Peec AI checks AI visibility with sentiment and competitor comparisons, including regional views. Recent pricing reports put entry plans near 95 to 119 dollars a month depending on billing. Prompt quotas limit lower tiers, so price your prompt list before choosing.

For most readers, the deciding question with Peec AI is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • AI visibility checks
  • Sentiment analysis
  • Competitor comparisons
  • Prompt quotas limit lower tiers
  • Newer platform
Profound logo
#7

Profound

Ideal for: Deep AI visibility checks

Profound offers deep AI visibility checks with conversation-level detail and enterprise reporting. That depth suits organisations treating AI search strategically. Pricing targets larger teams, so a single one-off check is better served by a free checker first.

For most readers, the deciding question with Profound is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • Conversation-level checks
  • Enterprise reporting
  • Trend views
  • Pricing targets larger teams
  • Overkill for a single check
ZipTie logo
#8

ZipTie

Ideal for: Low-cost per-check readings

ZipTie offers per-check AI visibility readings, with recent comparisons noting pricing near one cent per check for basic readings. That model suits teams wanting occasional checks without a monthly subscription. The feature set is narrower than suites, and per-check costs add up at high volume.

For most readers, the deciding question with ZipTie is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

The good and the bad
  • Per-check AI visibility readings
  • Simple pricing
  • AI overview focus
  • Feature set is narrower
  • Per-check costs add up at scale

How we picked these

We compared official feature pages, pricing pages, app store listings, privacy policies and public reviews for each option below. We kept only products that exist and work now, that fit the topic directly, and whose official homepage we could confirm. Where a price was not published clearly, we wrote See website rather than guessing, and we favoured options with a free tier or trial where one exists.

Checking LLM SEO the useful way

Start with a free checker before buying anything. A free reading from Frase or a trial check from Otterly tells you whether AI engines mention you at all, which decides whether ongoing tracking is worth paying for.

Check the same prompts across platforms. A brand can appear in ChatGPT but not in Perplexity or Gemini, and that gap reveals where content or citations need work. Cross-platform checks give a fuller picture than any single engine.

Record the full answer, not just the mention. Save the AI response, its sentiment and its citations, so you can compare after content changes. A checker that only says yes or no gives you little to act on.

Frequently asked questions

What is the best LLM SEO checking tool?

Frase checker offers the best free first reading, while Otterly suits ongoing checking at low cost. Semrush and Ahrefs suit teams wanting checks inside a full SEO suite.

What is the difference between an LLM checker and a tracker?

A checker gives one reading now, while a tracker watches the same prompts over time. Use a checker for a first look, then a tracker to see whether visibility changes after content updates.

Is there a free LLM SEO checker?

Yes, Frase offers a free AI visibility checker for ChatGPT, with Perplexity and Gemini available with email. Other tools offer free trials for initial checks.

How much do LLM SEO checking tools cost?

Free checkers cover single readings, while ongoing tools range from entry plans near 29 dollars a month to suite plans over 100 dollars a month. Per-check tools such as ZipTie suit occasional use.

Which prompts should I check?

Check prompts mirroring real customer questions about your product, category and competitors. High-intent prompts reveal visibility that matters, while generic brand prompts alone tell you little.

Sources

  1. https://www.frase.io
  2. https://www.semrush.com
  3. https://ahrefs.com
  4. https://otterly.ai
  5. https://www.peec.ai
  6. https://www.seranking.com
  7. https://profound.com
  8. https://ziptie.ai