File upload fields are one of the most vulnerable elements in a Drupal form, highly prone to hack attempts. So these have to undergo thorough rounds of testing to make sure the data that goes in is perfectly safe.
To ensure the security of confidential data in your Drupal site, testing has to be done to determine whether it protects its data and at the same time maintains its functionality. Web applications are always prone to unauthorized access to or modification of sensitive information. The testing done on the applications to remove such anomalies is called security testing.
Here are some basic SEO tests that you can perform on your Drupal/Non-Drupal website. Whenever a change is made in your site, run these tests for better results and for good SEO ranking.