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What's the best water tester?

A commercial recommendation prompt. We size how many people ask ChatGPT this from real search demand, then run it through ChatGPT to see which websites it recommends.

Est. people asking / mo
9.3K
CPC
$0.59
Total est. value / mo
$335
Common ways people ask this (10)
  • What's the best water tester for drinking water?
  • What's the best water tester for aquarium use?
  • What's the best water tester for pool water?
  • What's the best water tester for hydroponics?
  • What's the best water tester for well water?
  • What's the best water tester for pH testing?
  • What's the best water tester for TDS testing?
  • What's the best digital water tester?
  • What's the best budget water tester?
  • What's the best water tester for home use?

What ChatGPT actually answered

One of the 5 times we asked ChatGPT this, verbatim. The leaderboard below aggregates all 5 runs.

Websites ChatGPT recommends for this prompt

Aggregated across 5 runs (min 2/5 appearances). Estimated visits split the prompt's demand by rank. Sites matching the prompt's own brand are marked branded and excluded from the leaderboard.

RankWebsiteAppearsEst. visits / moEst. value / mo
1 hach.com 5/5 185 $109
2 palintest.com 5/5 111 $65
3 ysi.com 5/5 74 $43
4 milwaukeeinstruments.com 5/5 51 $30
5 thermofisher.com 5/5 37 $21
6 myronl.com 5/5 28 $16
7 horiba.com 4/5 20 $12
8 oakton.com 4/5 16 $9
9 hanna-instruments.com 2/5 12 $7
10 sensorex.com 3/5 9 $5
11 extech.com 2/5 7 $4
12 aquacheck.net 2/5 6 $3
13 laquatools.com 2/5 5 $2
14 eutechinst.com 2/5 4 $2
15 labcompare.com 2/5 3 $1
16 amazon.com 2/5 2 $1
How is this estimated?

ChatGPT doesn't publish prompts, so we don't show logged conversations. We measure real demand for this topic from Google search volume, scale it to ChatGPT's user base (on average about 1 ChatGPT user for every 8 Google searchers, a ratio that varies by topic), and run the prompt through ChatGPT 5 times to record which websites it recommends and in what order. Estimated visits split that demand across the recommended sites by a click-through-by-rank curve. Every number is a modeled estimate, not measured analytics. Full methodology →