Source domain profile · Academic and government source

medicare.gov in the Machine Relations Index

medicare.gov appeared as a cited source in 2 of 37,536 monitored answer runs (under 0.01%) from May 10, 2026 to November 8, 2026.

Source site Markdown Public JSON

Citation rateunder 0.01%

2 cited runs of 37,536 observed answer runs.

Days cited2/176

Days with a citation, of the days observed in the current release window.

Engine breadth1

Perplexity. This is an observed-engine list, not a per-engine rate.

ConfidenceCollecting

MRI confidence is not an Answer-Source Fidelity grade.

Standing

Population ranks from the public release

Public standing: Collecting: no rank until it clears the evidence floor
Full universe: Not ranked in this release
Source role population: Not ranked in this release
Evidence-qualified source role: Not ranked in this release

Segment evidence

Observed category and question-shape rows

Segment rates use that category and question shape only. A row still collecting shows how many runs have been measured. A dash means no measured runs yet.

Category	Question shape	State	Cited runs	Observed runs	Run dates	Rate	Rank population	Badge
Healthcare Services	Comparisons	Published	2	231	12	0.87%	#172 of 363	Badge

Published segments: 1. Collecting segments: 0.

Citation history

Cited runs month by month

medicare.gov was first cited in a monitored answer run on October 25, 2026, and most recently on November 1, 2026, with cited runs in each of the 2 months from then to this release. The release window opens 2026-05-10, so an earlier citation would not show here.

A month's rate is the share of all monitored answer runs that month that cited this domain. The latest month is still collecting.

Month	Cited runs	Observed runs	Rate
October 2026	1	16,496	0.01%
November 2026 (to November 8, 2026)	1	3,053	0.03%

By answer engine

Which engines cite medicare.gov

An engine's rate is its cited runs over every monitored run that engine answered in the window. Engines answer different numbers of runs, so compare rates, not counts.

Engine	Cited runs	Engine’s observed runs	Rate
Perplexity	2	8,982	0.02%
ChatGPT	0	8,863	0.00%
Claude	0	8,902	0.00%
Gemini	0	7,306	0.00%
Google AI Mode	0	2,157	0.00%
Google AI Overviews	0	1,326	0.00%

Since August 31, 2026, medicare.gov is cited in none of 951 observed Google AI Mode runs. Google AI Mode's collection changed between August 10, 2026 and August 30, 2026, so its row above pools both sides of the change.

Peers

Nearest sources on Healthcare Services / Comparisons

medicare.gov holds its best segment rank, #172 of 363, in Healthcare Services / Comparisons, at 0.87%. 66 sources on that leaderboard share that rate, and their order inside the tie is not a measured difference. Listed here: the nearest sources cited more and less often than it, and the sources beside it that share this best segment. Full leaderboard.

Rank	Source	Source role	Segment citation rate	Against this source
#117 of 363	gomedicalbilling.com	Other observed source	1.30%	+0.43 pts
#118 of 363	goodlifehealth.ai	Other observed source	1.30%	+0.43 pts
#119 of 363	Haute Beauty	Other observed source	1.30%	+0.43 pts
#171 of 363	localmd.nyc	Other observed source	0.87%	Same rate
#173 of 363	momentarylab.com	Other observed source	0.87%	Same rate
#295 of 363	medicodio.ai	Other observed source	0.43%	-0.44 pts
#296 of 363	medinextsolutions.com	Other observed source	0.43%	-0.44 pts
#297 of 363	mediorasolutions.com	Other observed source	0.43%	-0.44 pts

Cite this

Citation

Machine Relations Index (MRI), Machine Relations Research — machinerelations.ai. medicare.gov, under 0.01% citation rate, 2 of 37,536 monitored answer runs, 2026-05-10 to 2026-11-08. Release mri_score_v2.1+2026-11-08+0f28d6fa6d4f. https://machinerelations.ai/index/domains/medicare.gov. CC BY 4.0.

APA

Parrott, J. (2026). medicare.gov in the Machine Relations Index (Version mri_score_v2.1+2026-11-08+0f28d6fa6d4f) [Data set]. Machine Relations Research. https://machinerelations.ai/index/domains/medicare.gov https://doi.org/10.5281/zenodo.23652423

BibTeX

@misc{parrott2026mrimedicaregov,
  author = {Parrott, Jaxon},
  title = {medicare.gov in the Machine Relations Index},
  year = {2026},
  version = {mri\_score\_v2.1+2026-11-08+0f28d6fa6d4f},
  publisher = {Machine Relations Research},
  url = {https://machinerelations.ai/index/domains/medicare.gov},
  doi = {10.5281/zenodo.23652423},
  license = {CC-BY-4.0},
  note = {Machine Relations Index (MRI), Machine Relations Research — machinerelations.ai}
}

CITATION.cff

Release and boundary

What this profile measures

Published November 8, 2026. The observation window runs May 10, 2026 to November 8, 2026. Methodology v2.1.

Use the data

curl -fsSL "https://machinerelations.ai/data/machine-relations-index.json" -o machine-relations-index.json
curl -fsSL "https://machinerelations.ai/data/mri-release-manifest.json" -o mri-release-manifest.json
curl -fsSL "https://huggingface.co/datasets/machine-relations/machine-relations-index/resolve/main/domains.csv" -o domains.csv
curl -fsSL -L "https://doi.org/10.5281/zenodo.23652423" -o mri-zenodo.html

import json
from urllib.request import urlopen

index_url = "https://machinerelations.ai/data/machine-relations-index.json"
with urlopen(index_url) as response:
    index = json.load(response)
print(index["generated"], index["total_domains"])

The public dataset reports citation rates, rankings, and evidence counts. It excludes internal query identifiers, raw cited URLs, and answer-engine provider payloads. MRI measures observed root-domain citations in monitored prompts, not all AI answers, recommendation quality, web traffic or commercial performance. A citation is not source support.

Embed

Embed this profile’s badge

Put this badge on your site to show how often AI answers cite it. It links to this profile and updates with every new release; if a later release no longer includes this domain, the badge stops loading. To keep today’s numbers fixed, save the SVG and host it yourself.

HTML

<a href="https://machinerelations.ai/index/domains/medicare.gov"><img src="https://machinerelations.ai/index/domains/medicare.gov/badge.svg" alt="medicare.gov in the Machine Relations Index: cited in under 0.01% of monitored AI answers (2 of 37,536 runs), Nov 8, 2026 release. Machine Relations Research." width="385" height="64"></a>

Markdown

[![medicare.gov in the Machine Relations Index: cited in under 0.01% of monitored AI answers (2 of 37,536 runs), Nov 8, 2026 release. Machine Relations Research.](https://machinerelations.ai/index/domains/medicare.gov/badge.svg)](https://machinerelations.ai/index/domains/medicare.gov)