What AI reads before it recommends Uptime Monitoring tools

One question, put to the two AI engines that hand back the pages they opened.

The question, as it was asked

“What are the best uptime monitoring tools for SaaS and web applications?”

asked Oct 7, 2026 · Perplexity and Google AI Overviews · US English

These are not the leaderboard's engines. The leaderboard and the debate ask ChatGPT, Claude and Gemini. This page asks Perplexity and Google, because they are the two that disclose what they read. What an engine reads here does not explain a rank there.

Who they named

The companies each engine's answer named, in the order it first mentioned them. Order of mention is not a rank — neither engine ranked anything.

PerplexityPerplexity named 6 companies
  1. 1Better Stack#7
  2. 2Checkly#22
  3. 3Pingdom#1
  4. 4UptimeRobot#2
  5. 5Datadog×2#3
  6. 6Uptime Kuma×2—
Google AI OverviewsGoogle AI Overviews named 5 companies
  1. 1Datadog×2#3
  2. 2AppDynamics#15
  3. 3Site24x7#4
  4. 4Uptime Kuma×2—
  5. 5Netumo—

Named here, not on our leaderboard

2 companies the engines named are not on our leaderboard at all.

Uptime KumaNetumo

What they read

Every page each engine retrieved while answering. Retrieved is not the same as relied on — the engines report the pages they pulled back, and no engine tells anyone which of them changed its answer.

PerplexityPerplexity retrieved 50 pages from 34 sites· 17 of those pages sit on a company's own site

Most-read sites

uptimerobot.comown site7 pages
betterstack.comown site4 pages
onlineornot.comown site4 pages
hyperping.com3 pages
parse.gl2 pages
thectoclub.com2 pages
alphonsolabs.com1 page
atlassian.com1 page
augmentcode.com1 page
comparitech.com1 page

Every page retrieved

Google AI OverviewsGoogle AI Overviews retrieved 5 pages from 4 sites

Most-read sites

slashdot.org2 pages
medium.com1 page
reddit.comcommunity1 page
spotsaas.com1 page

Every page retrieved

Google's first page

The classic results Google listed for the same question, on the same call as the overview. Read 5 pages; 3 of them are on Google's first page.

  1. 1st resultFind 71 Best Website Monitoring Software with Uptime ...spotsaas.comalso read by the AI Overview
  2. 2nd resultBest Uptime Monitoring for SaaS: 7 Tools Ranked for 2026notifier.so
  3. 3rd resultEffective Uptime Monitoring Strategies for SaaS Applicationscassie.fm
  4. 4th result5 Best SaaS Monitoring Apps — Top Picksmedium.comalso read by the AI Overview
  5. 5th resultI've built the most flexible uptime monitoring tool out therereddit.com

A position here is a place in Google's classic results for this question, not a rank of a company and not one of ours. A check holds 7 to 10 of them.

The regulars

Sites this engine keeps coming back to. Page lists change week to week; the sites are much steadier, which is why this is the only thing here counted across checks.

Perplexity
  • uptimerobot.com4/4
  • betterstack.com4/4
  • onlineornot.com4/4
  • hyperping.com4/4
  • motadata.com4/4
  • nurbak.com4/4
  • runcloud.io4/4
  • signoz.io4/4
Google AI Overviews
  • reddit.com4/4
  • slashdot.org1/4
  • medium.com1/4
  • spotsaas.com1/4
What these numbers rest onOne question · the dates · how often each engine was asked

This page is about one question, not about the category. It says: when a buyer asks this exact question, here is what each engine retrieved and who each one named. It does not say these are the pages AI reads about this category — measured, one question finds only about a third of the sites the engines keep returning to across a whole market.

  • Retrieved, never cited. The engines hand back the pages they pulled; none of them says which ones it leaned on.
  • Per engine, never pooled. The engines read mostly different webs, so a combined page count would describe a list neither of them produced. The only cross-engine facts here are that both engines read a site and that both engines named a company.
  • Counts, never rates. Every number here counts a named thing. There is no percentage anywhere on this page.
  • An engine we could not read is said so plainly and enters no count. It is never shown as a zero.

When an engine returns nothing — the call fails, Perplexity answers without searching, or Google shows no overview — it is asked again, up to 3 times in all. Whatever the last attempt gave is what is published, with the number of attempts beside it.

  • Perplexity — asked once on Oct 7, 2026
  • Google AI Overviews — asked once on Oct 7, 2026

We do not open the retrieved pages. Everything here comes from what the engines themselves handed back. Both engines are asked from the United States, in English.

These are not the leaderboard's engines. The leaderboard and the debate ask ChatGPT, Claude and Gemini. This page asks Perplexity and Google, because they are the two that disclose what they read. What an engine reads here does not explain a rank there.

Methodology version 1.1.0Read the full methodology →

This check is one of a set. The same question is put to the same two engines in every tracked category, once a week.

What the engines read across every category →

Earlier checks

Each week's check is kept on that week's archive page, beside the leaderboard and the debate it shares a date with.

Sep 27, 2026 →Sep 20, 2026 →Sep 13, 2026 →