About one year ago, we were announcing an update of the quality checkpoints of our website analysis service. This update was including a new best practice related to hypertext links opening in a new window or tab by using target=”_blank” attribute.
Joining Google Chrome, the latest Firefox version now supports the rel=”noopener” attribute, which was one of our advised solutions. The right time for us to have a look back on this recommendation we have brought not only for better security but also for web performance. Continue reading
Third-party content are parasites. Friendly ones, with – most of the time – good intentions. But parasites anyway. Let’s discover some useful tips and techniques to deal with Third Party Content and their impacts regarding your website performance and security.
Your website seems fast enough to you? Are sure that your visitors share the same opinion? Through that question, we intend to talk about the huge differences of web connections among your users… and about the effects about how they will experience your website performance. Continue reading
Cookies are omnipresent all over the web as they let publishers store data directly on the user’s web browser. Especially used to identify the user session allowing the web server to recognize him all along his browsing, cookies usually contain sensitive data. You have to properly protect them. Continue reading
We have announced it a couple months ago: our web performance testing tool now fully supports HTTP/2 and our best practices repository has been updated to handle the particularities of this new protocol. Now, let’s go back to the reasons of HTTP/2 emergence and talk about the major changes this protocol brings, and these old HTTP/1 best practices that we will have to give up! Continue reading
Web performance testing tools like Google Page Speed or Dareboost already pointed it: injecting a script by using document.write instruction causes severe issues about websites loading time. Let’s talk about this topic one more time, as the next Chrome update to come won’t allow such scripts injections any longer. What kind of issues may you experience? Which alternatives to find?
Now that we have seen how CSP can be useful in preventing injections of content within your web pages, let’s have a look on some technical elements about CSP implementation, and a few ideas about the methodology to adopt. Continue reading
Thanks to Content Security Policy, you can protect your website from numerous vulnerabilities concerning content injection. Let’s see why and how to use that simple but powerful HTTP header, now widely supported by web browsers.