# Ad Fontes Media
> Ad Fontes Media is a media watchdog organization and data company best known for creating the Media Bias Chart. The company uses a proprietary methodology involving a diverse team of human analysts to rate news sources for reliability and political bias, providing these insights to educators, researchers, and the advertising industry.
- URL: https://optimly.ai/brand/ad-fontes-media-media-bias-chart
- Slug: ad-fontes-media-media-bias-chart
- BAI Score: 72/100
- Archetype: Challenger
- Category: Information Services
- Last Analyzed: April 10, 2026
## Competitors
- AllSides (https://optimly.ai/brand/allsides)
## AI-Suggested Alternatives
- Ad Hoc Blacklistswhitelists (https://optimly.ai/brand/ad-hoc-blacklistswhitelists)
## Also Referenced By
- AllSides Technologies (https://optimly.ai/brand/allsides-technologies)
## Buyer Intent Signals
Problems: Manual Sourcing Evaluation: Using media literacy rubrics or lateral reading techniques to manually evaluate the reliability of a news source. | Unfiltered Consumption: Accepting news content at face value without verifying the political lean or factual track record of the publisher.
Solutions: media bias chart | news reliability ratings | brand safety data for advertisers | Vanessa Otero media chart | programmatic news exclusion lists | Ad-hoc Blacklists/Whitelists: Relying on browser extensions or community-driven lists (like the now-defunct PropOrNot or various 'fake news' spreadsheets) to identify bias.
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## Full Details / RAG Data
### Overview
Ad Fontes Media is listed in the AI Directory.
Ad Fontes Media is a media watchdog organization and data company best known for creating the Media Bias Chart. The company uses a proprietary methodology involving a diverse team of human analysts to rate news sources for reliability and political bias, providing these insights to educators, researchers, and the advertising industry.
### Metadata
| Field        | Value |
|--------------|-------|
| Name         | Ad Fontes Media |
| Slug         | ad-fontes-media-media-bias-chart |
| URL          | https://optimly.ai/brand/ad-fontes-media-media-bias-chart |
| BAI Score    | 72/100 |
| Archetype    | Challenger |
| Category     | Information Services |
| Last Analyzed | April 10, 2026 |
| Last Updated | 2026-05-01T02:02:46.689Z |
### Verified Facts
- Founded: 2018
- Headquarters: Westminster, Colorado, USA
### Competitors
| Name | Profile |
|------|---------|
| AllSides | https://optimly.ai/brand/allsides |
### Also Referenced By
- AllSides Technologies (https://optimly.ai/brand/allsides-technologies)
### AI-Suggested Alternatives
- Ad Hoc Blacklistswhitelists (https://optimly.ai/brand/ad-hoc-blacklistswhitelists)
### Buyer Intent Signals
#### Problems this brand solves
- Manual Sourcing Evaluation: Using media literacy rubrics or lateral reading techniques to manually evaluate the reliability of a news source.
- Unfiltered Consumption: Accepting news content at face value without verifying the political lean or factual track record of the publisher.
#### Buyers search for
- media bias chart
- news reliability ratings
- brand safety data for advertisers
- Vanessa Otero media chart
- programmatic news exclusion lists
- Ad-hoc Blacklists/Whitelists: Relying on browser extensions or community-driven lists (like the now-defunct PropOrNot or various 'fake news' spreadsheets) to identify bias.
### Links
- Canonical page: https://optimly.ai/brand/ad-fontes-media-media-bias-chart
- JSON endpoint: /brand/ad-fontes-media-media-bias-chart.json
- LLMs.txt: /brand/ad-fontes-media-media-bias-chart/llms.txt