Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as arabic.
Based on the content of the document, the W3C Validator has determined that it’s written in Arabic, and it suggests you specify the direction of text from right to left like this:
<html dir="rtl" lang="ar">
6,250 HTML checks per week. Fully automated.
Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.