Title: Canonical & Readability Last modified: September 1, 2016 --- # Canonical & Readability * Resolved [netojose](https://wordpress.org/support/users/netojose/) * (@netojose) * [10 years, 1 month ago](https://wordpress.org/support/topic/canonical-readability/) * Hi There, * I read at your site that Yoast SEO should add canonical tags to the pages. Is that so? Do I have to turn anything on? I used two tools to check and they informed that my pages were all missing canonical tags. * I also saw at your site that Yoast SEO has a readability feature that includes Flesch–Kincaid readability test. I could not see at. Was it no longer supported? * Thanks a lot, * Jose * [https://wordpress.org/plugins/wordpress-seo/](https://wordpress.org/plugins/wordpress-seo/) Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Support [amboutwe](https://wordpress.org/support/users/amboutwe/) * (@amboutwe) * [10 years, 1 month ago](https://wordpress.org/support/topic/canonical-readability/#post-7587765) * Canonical tags are automatically added. Please provide your website URL for further investigation. * The Flesch Kincaid readability test remains in the current version for English language variations. * Thread Starter [netojose](https://wordpress.org/support/users/netojose/) * (@netojose) * [10 years ago](https://wordpress.org/support/topic/canonical-readability/#post-7587787) * Well, the report I get from onpage.org says: * Indexable pages without a valid canonical:48 Errors * Plugin Support [amboutwe](https://wordpress.org/support/users/amboutwe/) * (@amboutwe) * [10 years ago](https://wordpress.org/support/topic/canonical-readability/#post-7587813) * Please provide some sample URLs with this error for further investigation. * Thread Starter [netojose](https://wordpress.org/support/users/netojose/) * (@netojose) * [10 years ago](https://wordpress.org/support/topic/canonical-readability/#post-7587867) * [http://resumosparaconcursosgratis.com.br/portugues/portugues-para-concurso/](http://resumosparaconcursosgratis.com.br/portugues/portugues-para-concurso/) [http://resumosparaconcursosgratis.com.br/portugues/aula-1-ortografia/](http://resumosparaconcursosgratis.com.br/portugues/aula-1-ortografia/) * You can take any page from the site: [http://resumosparaconcursosgratis.com.br](http://resumosparaconcursosgratis.com.br) * Plugin Support [amboutwe](https://wordpress.org/support/users/amboutwe/) * (@amboutwe) * [10 years ago](https://wordpress.org/support/topic/canonical-readability/#post-7587869) * The canonical link is `` * However, a canonical link should include the http or https protocol. This means something on your site is removing the protocol which makes the canonical invalid. The fastest way to find the culprit is to check for conflicts. If you are unfamiliar with checking for conflicts, we wrote a small guide that will walk you through the steps. You can find it here: [How To Check For Plugin Conflicts](https://kb.yoast.com/kb/how-to-check-for-plugin-conflicts/#utm_source=support&utm_medium=forum&utm_campaign=support-link) Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Canonical & Readability’ is closed to new replies. * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908) * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/) * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq) * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/) * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/) * 5 replies * 2 participants * Last reply from: [amboutwe](https://wordpress.org/support/users/amboutwe/) * Last activity: [10 years ago](https://wordpress.org/support/topic/canonical-readability/#post-7587869) * Status: resolved