Canonical Tag Mod
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Downloads of Canonical Tag Mod are restricted to logged in users. If you do not have a user account on the TNG Wiki use the Request Account link to request a user account |
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If you have trouble downloading with Google Chrome, Vivaldi, Brave or other Chromium based browser, try using a right-click and select Open in new Window, then F5, or use another browser such as Firefox |
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| Canonical Tag Mod | ||
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| Summary | Creates canonical links for the getperson.php page to reduce duplicate without user-selected canonical no index errors. | |
| Validation | Latest mod is XHTML compliant. | |
| Mod Updated | 09 May 2024 | |
| Download link | For
canonical_tag_mod_v14.0.3.2 | |
| Download stats | Downloads Stats | |
| Author(s) | Steven Davis | |
| Homepage | Canonical Tag Mod (This page) | |
| Mod Support | TNG Community Forums | |
| Contact Developer | Steven Davis | |
| Latest Mod | 14.0.3.2 | |
| Min TNG V | 14.0.3 | |
| Max TNG V | 14.0.4 | |
| Files modified | ahnentafel.php descend.php descendtables.php descendtext.php descendvert.php extrastree.php fan.php genlib.php getperson.php pedigree.php pedigreetext.php register.php verticalchart.php | |
| Related Mods | ||
| Notes | ||
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Canonical Tag Mod is now obsolete. This feature was added in TNG v14.0.5 |
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Introduction
A canonical tag is a Internationalized Resource Identifier that links to a user-specified canonical (primary) version of a webpage.
Canonical tags optimize search engine indexing which improves the SEO rating.
Tags are not added to group pages due to overriding an individual's page.
Developer
This mod was developed by Steven Davis.
Advantages
Automatically assigns a canonical tag on getperson and associated pages.
Reduces Duplicate without user-selected canonical issues.
Does not use queries or affect TNG performance.
Meets Google's requirement to index pages when alternate content is found.
Meets the canonical RFC 5988 specification.
Additional Canonical Information
Canonical links direct search engines to a primary or preferred webpage. Only one canonical link is permitted on each page.
Canonical links can be used on any webpage, but this mod makes people the focus for search engines.
A canonical link is placed on the getperson page with a link to itself, or that same page.
Links are also placed on charts, when a person is the primary on the page, and links to the getperson page.
This aids in preventing the person not being indexed because they appear as a duplicate on another page.
While canonical links tell search engines which link to use for indexing, it does not guarantee the page will be indexed.
Duplicate user-selected canonical errors cannot be completely eliminated due to numerous ways pages are linked.
According to Google, having duplicate user-selected canonical links is normal.
Visual Google Search Console
Before installing the mod, the referring page link could not be indexed. The referring page link also points to a different Google selected canonical.
Since the referring page is not indexed it will not appear in Google search results while the incorrect Google selected canonical will appear in searches.
In this case the referring page actually links to a spouse.
After installing the mod, the referring page can be indexed as shown.
Adding a canonical tag does not guarantee search engines will index the page, but it does ensure a correct canonical link with a better index probability.
In this case Google accepted the user-declared canonical and the link now appears in Google search results.
Requirements
- A working TNG installation.
- A backup of all affected files (see the list in the summary to the right)
- A backup of tngrobots.php.
- An installed current version of the Mod Manager.
Revision History
| Mod Version | TNG Version | Date | Contents |
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| 14.0.3.2 | 14.0+ | 28 May 2024 | Removed site version from the getperson canonical link to eliminate any conflicts when search engines change crawl mode between standard and mobile. |
| 14.0.3.1a | 14.0+ | 09 May 2024 | Changed anchor to resolve conflict with Simple SEO (Thanks John Mark Motyer) |
| 14.0.3.1 | 14.0+ | 09 May 2024 | First released version |
Conflicts and Issues
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Note the install order requirements. Canonical Tag Mod conflicts with Mobile Site Enhancements. If you also use the Mobile Site Enhancements mod, it must be installed after the Canonical Tag Mod. You may need to uninstall the Mobile Site Enhancements and install it after the Canonical Tag Mod |
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Once both mods are installed either mod can be uninstalled without affecting the other.
Installation
- Uninstall and delete previous version of this mod (if installed)
- Download the appropriate zip file as shown in the mod summary in the upper right corner of the page.
- Extract the file and folder from the downloaded zip file into the mods folder or FTP the extracted file and folder to your mods folder.
- Follow the normal automated installation for Mod Manager, as shown in the example Mod Manager - Installing Config Files to install the mod.
In the event of a problem
- Try using the Mod Manager Remove capability.
- Copy the backup of the affected files back to your TNG directory.
- Copy the backup of tngrobots.php file back to your TNG directory.
- Retry installing mod.
- Contact us through the TNG Community Forums.
Uninstalling the mod
If you want to completely Remove (uninstall) this mod, you should
- click the Uninstall button to uninstall the mod
Upgrade
- Uninstall and eventually Delete the current Mod.
- Proceed as for an installation with the new Mod.
Sites using this mod
If you download and install this mod, please add your TNG site to the table below:
| URL | User | Note | Mod-Version | TNG-Version | User-language | |
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| Family Histories | Steven Davis | Mod developer | 14.0.3.2 |
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EN | |
| Treichel-Familie.de | Andreas Treichel | Public & Private | 14.0.3.2 |
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DE,EN,FR,ES,PL | |
| Roger's Ramblings | Roger Moffat | 14.0.3.1a |
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EN | ||
| Barta Joggele aus Mauren, Liechtenstein | Gerald Meier | Private | 14.0.3.1a |
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DE,EN,FR,ES,CZ,PT,IT,SL | |
| Gambrillfamilytree | Bobby Gambrill | 14.0.3.1a |
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EN |
