This means that the URL in question contains multiple viewport <meta> tags in the <head>.
The browser's viewport is the area of the window in which web content can be seen. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. A <meta> viewport element gives the browser instructions on how to control the page's dimensions and scaling.
Only one viewport tag is required, and if more than one is used this could lead to the wrong one being selected, which may cause rendering issues on mobile devices.
This Hint will trigger for any internal URL which contains multiple viewport meta tags.
This Hint would trigger for any URL that has more than one viewport <meta> tags in the head:
<!doctype html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
...
<meta name="viewport" content="width=320">
</head>
<body>...</body>
</html>
There is no need to define more than one viewport, so reduce them down to just 1.
It is possible to target the viewport for multiple screen sizes, with just a single viewport, e.g.
<meta name="viewport" content="width=device-width, initial-scale=1">
Find, fix and communicate technical issues with easy visuals, in-depth insights, & prioritized recommendations across 300+ SEO issues.
Get all the capability of Sitebulb Desktop, accessible via your web browser. Crawl at scale without project, crawl credit, or machine limits.