Source domain profile · Editorial publication

San Diego Union Tribune in the Machine Relations Index

sandiegouniontribune.com appeared as a cited source in 2 of 38,449 monitored answer runs (under 0.01%) from May 10, 2026 to November 11, 2026.

Source site Markdown Public JSON

Self-description

How the site describes itself

Sandiegouniontribune.com covers local news in San Diego County, CA, California and national news, sports, things to do and the best places to eat, business and the San Diego housing market.

sandiegouniontribune.com describes itself this way in the description tag on its homepage, read on November 11, 2026. It is the source's own wording, quoted as found, not a finding of this Index.

Citation rateunder 0.01%

2 cited runs of 38,449 observed answer runs.

Days cited2/179

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

Engine breadth2

Google AI Overviews, 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
Consumer Health	Comparisons	Published	1	304	13	0.33%	#261 of 305	Badge
Local Services	Is it worth it	Published	1	202	11	0.50%	#221 of 243	Badge

Published segments: 2. Collecting segments: 0.

Citation history

Cited runs month by month

sandiegouniontribune.com was first cited in a monitored answer run on November 4, 2026, and most recently on November 11, 2026, both in this release's latest month. 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
November 2026 (to November 11, 2026)	2	3,966	0.05%

By answer engine

Which engines cite San Diego Union Tribune

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
Google AI Overviews	1	1,354	0.07%
Perplexity	1	9,257	0.01%
ChatGPT	0	9,137	0.00%
Claude	0	9,177	0.00%
Gemini	0	7,326	0.00%
Google AI Mode	0	2,198	0.00%

Since August 31, 2026, San Diego Union Tribune is cited in none of 992 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.

Since October 7, 2026, San Diego Union Tribune is cited in 1 of 4,488 observed Perplexity runs (0.02%). Perplexity's collection changed between October 6, 2026 and October 7, 2026, so its row above pools both sides of the change.

Peers

Nearest sources on Local Services / Is it worth it

San Diego Union Tribune holds its best segment rank, #221 of 243, in Local Services / Is it worth it, at 0.50%. 101 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
#132 of 243	modahealth.com	Other observed source	0.99%	+0.49 pts
#133 of 243	policynest.net	Other observed source	0.99%	+0.49 pts
#134 of 243	quora.com	Community and social platform	0.99%	+0.49 pts
#135 of 243	riverbluffdental.com	Other observed source	0.99%	+0.49 pts
#136 of 243	rubyscleaningsandiego.com	Other observed source	0.99%	+0.49 pts
#137 of 243	teethtalkgirl.com	Other observed source	0.99%	+0.49 pts
#220 of 243	sandiegocleaningcost.org	Other observed source	0.50%	Same rate
#222 of 243	schwantesheating.com	Other observed source	0.50%	Same rate

Cite this

Citation

Machine Relations Index (MRI), Machine Relations Research — machinerelations.ai. San Diego Union Tribune (sandiegouniontribune.com), under 0.01% citation rate, 2 of 38,449 monitored answer runs, 2026-05-10 to 2026-11-11. Release mri_score_v2.1+2026-11-11+d52a5886914e. CC BY 4.0. https://machinerelations.ai/index/domains/sandiegouniontribune.com

APA

Parrott, J. (2026). San Diego Union Tribune (sandiegouniontribune.com) in the Machine Relations Index (Version mri_score_v2.1+2026-11-11+d52a5886914e) [Data set]. Machine Relations Research. https://machinerelations.ai/index/domains/sandiegouniontribune.com https://doi.org/10.5281/zenodo.23652423

BibTeX

@misc{parrott2026mrisandiegouniontribunecom,
  author = {Parrott, Jaxon},
  title = {San Diego Union Tribune (sandiegouniontribune.com) in the Machine Relations Index},
  year = {2026},
  version = {mri\_score\_v2.1+2026-11-11+d52a5886914e},
  publisher = {Machine Relations Research},
  url = {https://machinerelations.ai/index/domains/sandiegouniontribune.com},
  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 11, 2026. The observation window runs May 10, 2026 to November 11, 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.

San Diego Union Tribune on AuthorityTech’s publication intelligence, part of the AuthorityTech publication intelligence projection, is a downstream practitioner projection. It is not source evidence, citation provenance, or an identity link for the neutral dataset.

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/sandiegouniontribune.com"><img src="https://machinerelations.ai/index/domains/sandiegouniontribune.com/badge.svg" alt="San Diego Union Tribune in the Machine Relations Index: cited in under 0.01% of monitored AI answers (2 of 38,449 runs), Nov 11, 2026 release. Machine Relations Research." width="385" height="64"></a>

Markdown

[![San Diego Union Tribune in the Machine Relations Index: cited in under 0.01% of monitored AI answers (2 of 38,449 runs), Nov 11, 2026 release. Machine Relations Research.](https://machinerelations.ai/index/domains/sandiegouniontribune.com/badge.svg)](https://machinerelations.ai/index/domains/sandiegouniontribune.com)