Sources

A source is an information feed continuously monitored by Sentinel Briefing. The platform aggregates over 1,100 active sources covering 22 countries and 9 thematic verticals.

Supported source types

Type	Description	Availability
RSS/Atom feeds	Any standard RSS 2.0 or Atom 1.0 feed.	Available
Websites	Automatic feed detection or legal homepage scraping.	Available
X / Twitter	Public accounts via RSSHub. Availability varies with platform restrictions.	Available (partial)
Reddit	Subreddits and specific threads.	Available
Bluesky	Public accounts.	Available
Newsletters	Via a dedicated email address provided by Sentinel.	Available
Podcast / Video	Automatic transcription of audio and video episodes.	Coming soon

LinkedIn cannot be collected automatically. There is no public API and active anti-bot protections are in place. For LinkedIn posts, use the iOS shortcut Send to Sentinel to submit them manually as one-off inputs (in the Inputs section).

Add a source (administrator)

Adding sources directly is restricted to platform administrators. If you are not an administrator, use the Suggest a source procedure below.

In the Sources section, click + New source.
Fill in the fields:
- Name * — label displayed in the interface.
- URL slug * — auto-generated from the name, editable.
- URL — address of the RSS/Atom feed or web page.
- Type — RSS, web, X/Twitter, Reddit, Bluesky or newsletter.
- Category — see the categories table below.
- Reliability (0–1) — editorial reliability score; influences analysis weighting.
- Frequency — Hourly (collected at :05), Daily (collected at 06:00) or Weekly.
Click Add.
Validate immediately with the Test button on the source row: Sentinel performs a trial collection and shows the number of articles found.

If the test returns 0 articles, check the feed URL (use an external RSS validator), any paywalls, and that the source is not blocked by an invalid TLS certificate.

Suggest a source

Any user (even without admin rights) can suggest adding a source. The administrator receives the suggestion by email and adds it if relevant.

In the Sources section, click Suggest a source.
Enter the Source URL (RSS/Atom feed, website, X/Twitter profile, Reddit channel, Bluesky account or newsletter).
Add an optional Comment explaining the topic or reason for the suggestion.
Click Send suggestion.

You will not receive a validation notification. If the source does not appear in the list after a week, follow up with the administrator.

Source categories

Each source is classified into one of nine categories:

Category	Typical examples
Press	Reuters, Financial Times, Le Monde, Il Sole 24 Ore
Institutional	European Commission, World Bank, OECD, ministries
Parliamentary	European Parliament, French Senate, Bundestag
Legal	EUR-Lex, Légifrance, OJEU, Court of Justice EU
Think tank	IFRI, Bruegel, ECFR, Chatham House
Social media	X/Twitter, Bluesky, Reddit
Blog	Expert blogs, specialised Substacks
Research	SSRN, arXiv, HAL, academic publications

Filter the list by category, type, country or status using the dropdowns at the top of the Sources section.

Link a source to a profile

A source must be linked to at least one watch profile to feed its analyses. Two modes:

Generalist — the source is shared across all active profiles. Collected articles are eligible for analysis by any profile whose keywords match.
Specialized — the source is assigned to a specific profile. Only that profile analyses its articles.

From the sources list, find the desired source.
Click Link → to associate it with the profile of your choice.
Click Unlink ← to remove the association.

Source scope

Use the Scope menu to configure whether a source is generalist (shared across all profiles) or specialized (reserved for a specific profile). Scope appears in statistics — generalist and specialized sources are counted separately.

A source specialized on a dormant or disabled profile produces no analyses until the profile is reactivated.

Private sources

When adding a source, check 🔒 Private source for my firm to make it visible and usable only by your firm's profiles. It is not shared with other firms on the platform.

Private sources display a 🔒 icon in the list.
This option is available to any user, even without admin rights.
Useful for internal sources, premium newsletters or confidential feeds.

Troubleshooting

The source shows an "Error" badge

Click Test to get the error details. Common causes: (1) invalid or changed feed URL — verify it directly in the browser, (2) expired TLS certificate on the source site, (3) the remote host is blocking automated requests (403/429). Use Reset after fixing to reset the error counter.

The source is active but no articles are collected

Check (1) that the feed is actually publishing new content (latest article visible in the browser), (2) that the configured frequency matches the publication pace — a weekly source set to "Daily" collects fine, but a daily source set to "Weekly" will be slow. Check Last: on the source row for the date of the last successful collection.

X/Twitter: source no longer collecting

X/Twitter collection goes through RSSHub, which is subject to platform restrictions. If unavailable, the RSSHub instance may be temporarily blocked. No user action is possible — the issue typically resolves within 24–48 hours.

My source suggestion was not added

Suggestions are evaluated by the administrator based on editorial relevance and the availability of a reliable RSS feed. A response is not systematically sent. If the source is important for your monitoring, follow up with the administrator specifying the profile concerned.

The "+ New source" button is not visible

Direct source addition is restricted to administrators. Use Suggest a source to submit a request to the administrator.

FAQ

How many sources are available in Sentinel?

Over 1,100 active sources covering 22 countries and 9 thematic verticals. The catalogue is continuously enriched.

Can I import multiple sources at once?

Bulk import via OPML file is available to administrators. For non-admin users, suggestions are made one at a time via "Suggest a source".

Is a private source visible to other firms?

No. A source marked "🔒 Private source for my firm" is neither visible nor used by other firms on the platform.

How often are RSS feeds collected?

Sources configured as "Hourly" are collected at :05 every hour. "Daily" sources are collected at 06:00 every day. "Weekly" sources are collected on Monday morning.