Comodo Trust Logo is displayed on your website to show your clients that your site is secure and can be trusted. After purchasing a Comodo certificate, the link to download the logo is sent to your email. If not sent, you can check it out here: https://www.trustlogo.com/install/index.html
After that, you can install the site seal in three simple steps:
1. Upload the Trust Logo into your web server
Take the image and upload it in your public_html folder. You can upload it in any folder within the public_html folder. Then get the URL for the graphic location. Test it on your browser to see whether the image is accessible. After that, proceed to the next step.
Note: Do not modify the image by resizing it or otherwise. The graphic only works if it remains as downloaded from Comodo.
2. Verify graphic URL
Copy the graphic URL and paste in the verification dialog as shown below the click Verify button
3. Copy the snippets to your HTML files.
Finally, after successful URL verification, two code snippets will be provided. Copy the 1st snippet and paste it just before the </HEAD> tag in the HTML pages. Then copy and paste the 2nd snippet just before the </BODY> tag in the same HTML pages. After that save the changes and access the page online. The Trust logo should appear on your pages.