RSS/Atom Feed-Validator v1.3
Prüft Feeds aus URL oder Upload. Erkennt XML-Fehler (Zeile/Spalte) und typische Spezifikations-Probleme.
Optionaler HTML-Check in <description>/<content> (DOMDocument; Tidy, falls vorhanden).
Prüfung starten
Beispiel-Feeds
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BBC News (RSS 2.0)
https://feeds.bbci.co.uk/news/rss.xml
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tagesschau (RSS 2.0)
https://www.tagesschau.de/xml/rss2
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Heise Online (Atom 1.0)
https://www.heise.de/rss/heise-atom.xml
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Hacker News Frontpage (RSS)
https://hnrss.org/frontpage
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Reddit r/news (Atom)
https://www.reddit.com/r/news/.rss
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NASA Breaking News (RSS)
https://www.nasa.gov/rss/dyn/breaking_news.rss
Ergebnis
Typ: rss2 (version 2.0)
Items gezählt: 10
Content-Type: application/rss+xml; charset=UTF-8
HTML-Check: aktiv
Text-Normalisierung: aktiv
Dein Feed ist wohlgeformt und es wurden keine kritischen Probleme gefunden.
Vorschau (erste 5 Items)
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NASA?s X-59 Experimental Supersonic Aircraft Makes Second FlightÂ
NASA’s quiet supersonic X-59 aircraft made its second flight on Friday, kicking off a series of dozens of test flights in 2026.  Although the flight duration was abbreviated due to ...
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Hangar One Restoration Project
Editor’s Note: This article was originally published on April 25, 2022 and has been updated to reflect changes including the completion of Hangar One’s restoration. Restoration has been completed on Hangar One, a historic la ...
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NASA Selects University Finalists for Technology Concepts Competition
NASA selected 14 university teams from across the nation as finalists in the 2026 Revolutionary Aerospace Systems Concepts ? Academic Linkage (RASC-AL) Competition. This NASA challenge tasks students to design innovative concepts that c ...
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How Open NASA Data on Comet 3I/ATLAS Will Power Tomorrow?s Discoveries
The interstellar comet 3I/ATLAS will soon leave our solar system, never to return, but the observations of the comet will live on in NASA?s public data archives. More than a dozen NASA science missions turned their instruments to observ ...
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Smiles and Spacesuits
NASA astronaut Chris Williams smiles at the camera during a spacesuit fit verification on Jan. 2, 2026, inside the International Space Station?s Quest airlock. This procedure confirms that the spacesuit is airtight and properly configur ...
Was wird geprüft?
- Wohlgeformtes XML (Zeile/Spalte bei Fehlern)
- RSS 2.0:
<channel>-Pflichtfelder; Items: Titel/Link/description;<guid>-Existenz & Duplikate;<pubDate>RFC-2822 - Atom 1.0:
<title>,link rel="alternate",<updated>ISO-8601 - Self-Reference via
atom:link rel="self"? Abruf-URL - Unescapte
&in description/content - Tags/Kategorien: Warnung, wenn ein Item/Entry keine
<category>enthält - HTML-Fragment-Check (abschaltbar) in description/content (DOMDocument; optional Tidy)
- Vorschau-Normalisierung: repariert typische UTF-8/Windows-1252-Mojibake in Titel & Summary
- Content-Type-Hinweis (empfohlen:
application/rss+xml/application/atom+xml)