Driving Massive Web Traffic with Automated SEO Systems
Developers can reduce loading times for existing images by executing responsive images. If any of your pages are using HTTP, you'll see the above suggestion.
GSA SER tutorial
Pages that load over HTTPS also use a more protected browsing experience for your website visitors. If your site is hosted or partially hosted externally, you'll need to buy an SSL cert from an external company to pack your pages using HTTPS.
If any of the resources on your pages are loading over an insecure connection, you'll see the above suggestion. Loading resources (like images, CSS files, JavaScript files, etc) over an insecure connection decreases the security of the entire page. It can also lead to browsers showing a mixed material warning or obstructing the affected resources.
If your resources are hosted or partially hosted externally, you'll require to purchase an SSL cert from an external company to fill your resources using HTTPS. If you have already bought an SSL cert from an external supplier however your resources aren't loading using HHTTPS, you'll require to contact your external service provider to resolve the issue.
External links that open a page in a brand-new internet browser tab using the target="_ blank" quality can trigger security and performance concerns. You can avoid these concerns by including rel="noopener" or rel="noreferrer" to these links. Find out more about prospective risks of this kind of external link. In some HubSpot modules like the Follow Me module, the rel="noopener" attribute is included to external links automatically.
