HTML Validation Result of interia.pl

After validating, we found 2 errors and 3 warnings.

2 Errors

1. Bad value “speculationrules” for attribute “type” on element “script”: Subtype missing. 1 occurrence
On line 50, column 40 '...> <script type="speculationrules"> ...'

2. Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.) 1 occurrence
On line 4564, column 187 '... <div class="authors-ntgrymen authors-container" data-iwa-block="ntgrymen-authors-1" data-iwa-viewability-name="ntgrymen-authors-1"> ...'

3 Warnings

1. Trailing slash on void elements has no effect and interacts badly with unquoted attribute values. 4 occurrences
On line 11, column 95 '...pl/"> <meta property="og:title" content="Interia - Polska i świat: informacje, sport, gwiazdy."/> <...'
On line 14, column 49 '...png"> <meta property="og:type" content="website" /> <...'
On line 39, column 62 '... <link rel="canonical" href="https://www.interia.pl" /> <...'
On line 43, column 79 '...xml"> <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png"/><!-- 1...'

2. Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections, or else use a “div” element instead for any cases where no heading is needed. 1 occurrence
On line 955, column 166 '... <section class="wydarzenia news-container" data-iwa-block="wydarzenia" data-iwa-viewability-name="wydarzenia"> ...'

3. Empty heading. 1 occurrence
On line 8377, column 37 '... <h2 class="header-title"> ...'

HTML Validator

What are the most common errors on your website? Summarize the HTML errors across and entire domain with the HTML Validator.