Closed How do I set a canonical page for all pages and sections of a website?

[Yurensiy]

Hello. How do I set a canonical page for all pages and sections of a website? I made a mistake, not because I needed a domain, but because it redirected to the main site, and now Google is complaining that this site is a copy. Consequently, it ranks 100+ positions in search results.
I need to set this page as the canonical one. But if I use the code <link rel="canonical" href="URL" /> , it's the same for all pages, and each page needs its own canonical code.

 

[proxybunker]

Hello. How do I set a canonical page for all pages and sections of a website? I made a mistake, not because I needed a domain, but because it redirected to the main site, and now Google is complaining that this site is a copy. Consequently, it ranks 100+ positions in search results.
I need to set this page as the canonical one. But if I use the code <link rel="canonical" href="URL" /> , it's the same for all pages, and each page needs its own canonical code.

Generate the canonical URL dynamically using the site's configured base URL (SYS_URL) + the current
request path ($_SERVER['REQUEST_URI'])

1. includes/functions.php — Add canonical generation in page_header() (after line 7282)
After the existing $smarty->assign('page_image', $image);, add:

 /* generate canonical URL */
 $page_canonical = '';
 if (isset($_SERVER['REQUEST_URI'])) {
   $request_path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
   if ($request_path !== null && $request_path !== '') {
     $skip_prefixes = ['/admincp', '/modcp', '/admin.php', '/moderator.php'];
     $is_control_panel = false;
     foreach ($skip_prefixes as $prefix) {
       if (strpos($request_path, $prefix) === 0) {
         $is_control_panel = true;
         break;
       }
     }
     if (!$is_control_panel) {
       $page_canonical = SYS_URL . $request_path;
     }
   }
 }
 $smarty->assign('page_canonical', $page_canonical);

 Key decisions:
       if (strpos($request_path, $prefix) === 0) {
         $is_control_panel = true;
         break;
       }
     }
     if (!$is_control_panel) {
       $page_canonical = SYS_URL . $request_path;
     }
   }
 }
 $smarty->assign('page_canonical', $page_canonical);

2. content/themes/default/templates/_head.tpl — Add canonical tag (after line 26)

After <!-- OG-Meta -->, before <!-- Twitter-Meta -->:

     <!-- Canonical -->
     {if $page_canonical neq ''}
       <link rel="canonical" href="{$page_canonical}" />
     {/if}
     <!-- Canonical -->

3. Add og:url in _head.tpl inside the OG-Meta block (after line 25)

     <meta property="og:url" content="{if $page_canonical neq
 ''}{$page_canonical}{else}{$system['system_url']}{/if}" />

This helps social platforms (Facebook, etc.) identify the canonical URL for shared links.

This should do what you want; however, I have not tested the code within a script yet. ​

 

[Yurensiy]

Generate the canonical URL dynamically using the site's configured base URL (SYS_URL) + the current
request path ($_SERVER['REQUEST_URI'])

1. includes/functions.php — Add canonical generation in page_header() (after line 7282)
After the existing $smarty->assign('page_image', $image);, add:

 /* generate canonical URL */
 $page_canonical = '';
 if (isset($_SERVER['REQUEST_URI'])) {
   $request_path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
   if ($request_path !== null && $request_path !== '') {
     $skip_prefixes = ['/admincp', '/modcp', '/admin.php', '/moderator.php'];
     $is_control_panel = false;
     foreach ($skip_prefixes as $prefix) {
       if (strpos($request_path, $prefix) === 0) {
         $is_control_panel = true;
         break;
       }
     }
     if (!$is_control_panel) {
       $page_canonical = SYS_URL . $request_path;
     }
   }
 }
 $smarty->assign('page_canonical', $page_canonical);

 Key decisions:
       if (strpos($request_path, $prefix) === 0) {
         $is_control_panel = true;
         break;
       }
     }
     if (!$is_control_panel) {
       $page_canonical = SYS_URL . $request_path;
     }
   }
 }
 $smarty->assign('page_canonical', $page_canonical);

2. content/themes/default/templates/_head.tpl — Add canonical tag (after line 26)

After <!-- OG-Meta -->, before <!-- Twitter-Meta -->:

     <!-- Canonical -->
     {if $page_canonical neq ''}
       <link rel="canonical" href="{$page_canonical}" />
     {/if}
     <!-- Canonical -->

3. Add og:url in _head.tpl inside the OG-Meta block (after line 25)

     <meta property="og:url" content="{if $page_canonical neq
 ''}{$page_canonical}{else}{$system['system_url']}{/if}" />

This helps social platforms (Facebook, etc.) identify the canonical URL for shared links.

This should do what you want; however, I have not tested the code within a script yet. ​

You are an incredibly cool specialist! Thank you!!!

 

[Yurensiy]

Hmm... It doesn't work.

 

[proxybunker]

Hmm... It doesn't work.

When you say it doesn't work, do you get an error

 

[Yurensiy]

When you say it doesn't work, do you get an error

Yes. The site just doesn't work. It's shutting down.

 

[proxybunker]

Turn back on your FTP and I'll make the changes.

Yes. The site just doesn't work. It's shutting down.

 

[proxybunker]

This is the full guide that will show you how to edit and where to edit the code.

Code Tweaks Thread 'Add Dynamic Canonical URL Tags to Sngine Site'

May 6, 2026

Purpose: The canonical tag (<link rel="canonical" href="...">) tells search engines: "This is the definitive URL for this page." It solves the problem of the same or similar content being reachable from multiple URLs.

When duplicate URLs happen (very common):
- https://example.com/blogs vs https://www.example.com/blogs (www vs non-www)
- https://example.com/blogs vs https://example.com/blogs?utm_source=twitter (tracking parameters)
- https://example.com/blogs vs http://example.com/blogs (http vs https)
- Category/tag pages that show the...

• proxybunker
• Replies: 0
• Forum: Sngine Tweaks and Modifications

• 

 

[Yurensiy]

I'll create a new FTP user now since I've transferred the sites to the main server and I'll give you access via private message.

 

[proxybunker]

Hello @Yurensiy,

After careful consideration, we have decided to close this support ticket thread as we have not received any communication from you in the last five days. If you have any further inquiries or require assistance, please feel free to get in touch with us or open a new support ticket. We are committed to providing you with the help you need. Thank you for your understanding!