Joomla SEO warnings explained

Audit tools such as Ahrefs and Semrush report the same few warnings on most Joomla sites. Each page below explains what one warning means, why Joomla sites get it, how to fix it by hand, and how MetaGen — our free SEO extension for Joomla 5 and 6 — finds or fixes it for you.

Warning in your auditWhat to do
Joomla site on both www and non-www" Joomla site still loads over HTTP
Meta description tag missing or empty Meta description missing in Joomla
Meta description too long Meta description too long in Joomla
Meta description too short Meta description too short in Joomla
Title too long Title too long in Joomla
Multiple H1 tags Multiple H1 tags in Joomla
H1 tag missing or empty H1 missing in Joomla
Duplicate pages without canonical Duplicate pages without canonical in Joomla
Open Graph URL not matching canonical Joomla og:url not matching canonical
Open Graph tags incomplete Open Graph tags incomplete in Joomla
X (Twitter) card missing or incomplete X (Twitter) card missing in Joomla
Missing alt text Missing image alt text in Joomla
Image broken / Page has broken image Broken images in Joomla articles
Image file size too large Image file size too large in Joomla
Page has links to broken page / 4XX page Broken internal links in Joomla
External 4XX External 4XX links in Joomla
Duplicate pages / canonical pointing to another host Joomla site on both www and non-www
Links to redirects in Joomla Page has links to redirect
Joomla site still loads over HTTP
Links to redirects in Joomla
X (Twitter) card missing in Joomla
Joomla site on both www and non-www
Title too long in Joomla
Joomla og:url not matching canonical
Open Graph tags incomplete in Joomla
Multiple H1 tags in Joomla
Missing image alt text in Joomla
Meta description too short in Joomla
Meta description too long in Joomla
Meta description missing in Joomla
Image file size too large in Joomla
H1 missing in Joomla
External 4XX links in Joomla
Duplicate pages without canonical in Joomla
Broken internal links in Joomla
Broken images in Joomla articles

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928uk® is a trademark of Multizone Limited, registered in the UK. Multizone and this site is not affiliated with or endorsed by The Joomla! Project™. Any products and services provided through this site are not supported or warrantied by The Joomla! Project or Open Source Matters, Inc. Use of the Joomla!® name, symbol, logo and related trademarks is permitted under a limited licence granted by Open Source Matters, Inc. AdMob™, AdSense™, AdWords™, Android™, Chrome OS™, Chromebook™, Chrome™, DART™, Flutter™, Firebase™, Firestore™, Fuchsia™, Gmail™, Google Maps™, Google Pixel™, Google Play™, Pixelbook Go™, and Pixel™ and other trademarks listed at the Google Brand Resource center are trademarks of Google LLC and this site is not endorsed by or affiliated with Google in any way. Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. The OSI logo trademark is the trademark of Open Source Initiative. Any other product or company names may be trademarks™ or registered® trademarks of their respective holders. Use of these trademarks in articles here does not apply affiliation or endorsement by any of them.

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BSD 3-Clause "New" or "Revised" Licence
Original source code for mobile apps are licenced using the same licence as the one used by "The Flutter Authors". This Licence, the BSD 3-Clause "New" or "Revised" Licence (bsd-3-clause) is a permissive licence with a clause that prohibits others from using the name of the project or its contributors to promote derived products without written consent.
GNU General Public Licence v3.0 or later
Original source code for Joomla! published here on multizone.co.uk by Angus Fox, Multizone Limited is licenced using the GNU General Public Licence. This Licence, the GNU General Public Licence Version 3 or later (gpl-3.0+) is the most widely used free software licence and has a strong copyleft requirement. When distributing derived works, the source code of the work must be made available under the same licence.

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Logo
Our Logo Image is by Magnific. We chose it because its an M and also the letter A twice - and that represents us.
Graphics
Our images representing user experience and interface design are from Magnific here and here and here and here and here.