Use Google Structured Data Testing tool to test this markup
Note : Semantic Markup has been restricted to first entities as you are not logged in.
<script type="application/ld+json">{"@context":"https://schema.org","@type": "WebPage","@id":"#main","mainEntityOfPage":{"@type":"WebPage", "@id":"http://fromair.ru/communication/forum/user/51125/"}, "headline":"","description":"The server cannot find the requested page:","about":[{"@type": "Thing","name": "error","sameAs": ["https://en.wikipedia.org/wiki/Error_(law)"]},{"@type": "Thing","name": "WebMaster","sameAs": ["https://en.wikipedia.org/wiki/Webmaster", "https://www.wikidata.org/wiki/Q41674"]}],"author":{"@type":"Organization","url":"http://fromair.ru/","name":"http://fromair.ru/"},"publisher":{"@type":"Organization", "name":"http://fromair.ru/", "url":"http://fromair.ru/", "logo": {"@type": "ImageObject", "url": "http://www.example.com", "width": 4, "height": 97}},"datePublished":"2024-05-07T16:01:12","dateModified":"2024-05-07T16:01:12"}</script>
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404 Not Found
Please forward this error<span itemscope itemtype="http://schema.org/Thing">
<span itemprop="name">error</span>
<link itemprop="sameAs" href="https://en.wikipedia.org/wiki/Error_(law)" />
</span> screen to fromair.ru's WebMaster.
The server cannot find the requested page:
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