RankDude
Updated 11/02/2026 · next update 12/01/2026

AI Symptom Checker Industry Report, October 2026

Miles FosterOwner and tester, RankDude

The market▼ Shrinkingbut visits without Mayo Clinic Symptom Checker are up 316% on a year ago

Visits, year on year, without Mayo Clinic Symptom Checker
+316%
Visits, last six months
-11%
Name searches vs October 2025
-31%

Every key number on the AI symptom checker market for October 2026, dated and sourced, so you can quote it. The 5 sites I measure got about 89 million visits from Google, 6% more than a year ago.

Below: every figure in one table, the most-visited sites, who grew and who shrank and what I expect for November 2026.

Published 2 November 2026. Data from DataForSEO, Tranco and Ahrefs · free to quote with a link · not a ranking

AI symptom checker industry report: the key numbers for October 2026

Four numbers for October 2026. Visits mean visits from Google search to the 5 tracked sites. Tap one for the detail below.

1Every figure in one table

Measure

  • Search visits a month, all tracked sites, worldwide
    Value
    88,999,817
    Period and basis
    October 2026; +6.3% year on year, +2.6% month on month
  • Search visits a month, United States
    Value
    29,011,624
    Period and basis
    October 2026; +9.6% year on year
  • US share of worldwide search visits
    Value
    32.6%
    Period and basis
    October 2026
  • Brand-name searches a month, US, all counted brands
    Value
    3,310
    Period and basis
    September 2026; -30.8% against October 2025
  • Brand-name searches a month, worldwide
    Value
    20,200
    Period and basis
    September 2026; -33.8% against October 2025
  • Searches a month for “ai symptom checker”, US
    Value
    1,600
    Period and basis
    Google Ads, 12-month average
  • Searches a month for “ai symptom checker”, worldwide
    Value
    2,900
    Period and basis
    Google Ads, 12-month average
  • Referring domains, all tracked sites
    Value
    420,105
    Period and basis
    October 2026; first reading, no year-on-year figure yet
  • Tracked sites on Google's first page for “ai symptom checker”, US
    Value
    1
    Period and basis
    October 2026; positions 1 to 10
  • Tracked sites ranking anywhere for “ai symptom checker”, US
    Value
    2
    Period and basis
    October 2026; any position checked

2How many people visited

In plain words: These sites got more visits from Google than a year ago (+6%), and October 2026 was about the same as September 2026 (+3%). Mayo Clinic Symptom Checker, which takes 96.1% of all the visits, accounts for most of the rise (50% of it). Without it, visits would be up 316.3% on a year ago instead of up 6.3%.

WorldVisits a month to AI symptom checker sites, worldwide

050M100M150M200MNov 24Jan 25Mar 25May 25Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jul 26Oct 2689M
Low 70MHigh 111MAverage 86M
Hover, tap, or use the arrow keys to inspect a month

Source: DataForSEO, Google search visits, all tracked sites.

Miles explains

Judge this line on the year, not the last dot: visits are 6% above a year ago, and 20% below the January 2025 high. One site winning or losing a ranking can swing a single month a lot.

3How many people went looking

People typed a site’s name into Google 31% less often than in October 2025 (-31%). That is the loyalty number: nobody types a name by accident.

USSearches a month for the site names, United States

02.5K5.0K7.5K10.0KOct 25Dec 25Feb 26Apr 26Jun 26Sep 263.3K
Low 3.0KHigh 8.1KAverage 4.7K
Hover, tap, or use the arrow keys to inspect a month

US searches a month for the counted brand names, summed. Google Ads data via DataForSEO, to September 2026.

Miles explains

Name searches are the number I trust most. They are down 31%, and nobody types a site’s name by accident, so this shows fewer people coming back on purpose.

4Where the visitors live

About 33 of every 100 visits come from the United States. Outside the US I measure 7 countries one by one; the largest is India.

USShare of visits that come from the US (%)

012.52537.550Nov 24Jan 25Mar 25May 25Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jul 26Oct 2632.6
Low 18.5High 34.5Average 30
Hover, tap, or use the arrow keys to inspect a month

US share of worldwide search visits, month by month.

Country

  • India
    Search visits a month
    11,383,474
    Share of the measured countries
    50%
  • Canada
    Search visits a month
    5,085,321
    Share of the measured countries
    22.3%
  • United Kingdom
    Search visits a month
    3,685,684
    Share of the measured countries
    16.2%
  • Australia
    Search visits a month
    2,188,632
    Share of the measured countries
    9.6%
  • Germany
    Search visits a month
    203,530
    Share of the measured countries
    0.9%
  • Brazil
    Search visits a month
    132,716
    Share of the measured countries
    0.6%
  • France
    Search visits a month
    102,958
    Share of the measured countries
    0.5%

Source: DataForSEO, October 2026.

Miles explains

The US is the biggest single market, but only about 33 in every 100 visits. India alone is 50% of the countries measured outside it.

5The most-visited sites

Mayo Clinic Symptom Checker gets the most visits, Ada is the name people search for most, and Isabel Symptom Checker is the highest-placed tracked site on Google for “ai symptom checker”, at position 2.

By worldwide search visits

By US brand-name searches

6Who grew and who shrank

The fastest grower in a year was Ubie (+1841%); the steepest fall was at Ada (-34%). Big swings are usually one site winning or losing one Google ranking.

Growing

Declining

Worldwide search visits, October 2026 against a year earlier; sites with at least 5,000 visits a year ago.

To cite this report: RankDude, “AI Symptom Checker Industry Report, October 2026”, published 2 November 2026, https://rankdude.ai/statistics/ai-symptom-checker/industry-report. Figures are estimates from the sources named beside them.