Why does it show a markup language error?

A

airbor2021-04-12 11:38:05

Search Engine Optimization

airbor, 2021-04-12 11:38:05

Writes:

Missing reciprocal hreflang (no return-tag) for these pages:

And the message: Self-reference hreflang annotation missing for these:

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1 answer(s)

N

Nikolai Dubkov, 2021-07-16
@vokbud

For example, on this page https://nikoss.com.ua/katalog-materialov.html ,
in the source code, you forgot to include quotes in the lang attribute.

<!DOCTYPE html>
<html lang=ru> <!-- должно быть lang="ru" -->
<head>
<meta name=robots content="index, follow"/>
<meta http-equiv=content-type content="text/html; charset=UTF-8"/>
<title>Жалюзи в Киеве - Купить жалюзи на окна, изготовление!</title>