The Sucuri Firewall functions as a reverse proxy, filtering all incoming traffic through the Sucuri network, parsing good requests from bad requests. To accomplish this, a change is made to your DNS settings. Specifically, one or more A records are...
When trying to whitelist an IP address you might get the following error message: This means the IP address you are trying to whitelist is either a local IP address (10.0.0.0/8, 172.16.0.0/12 or 192.168.0.0/16) OR was typed incorrectly. You can only...
Blocking the top three attack countries The majority of website attacks come from specific countries: China, Russia and Turkey. Although we have nothing against those countries, the Sucuri Firewall gives you the option of blocking them from...
Sucuri allows you to block unwanted visitors to your site based on where they come from or based on its referer. HTTP referer (originally a misspelling of referrer) is an HTTP header field that identifies the address of the webpage that is linked to...
A cookie is a small piece of data sent from a website and stored in a user’s web browser while the user is browsing that website. Every time the user loads the website, the browser sends the cookie back to the server to notify the website of the...
A good way to block unwanted visitors to your site is by blocking specific user-agents. By blocking their User Agents, you will stop any traffic that contains the specified name in the user agent field. A “user agent” is a software agent that is...
One great feature of the Sucuri Firewall is its caching. You not only get protection but also speed optimization due to our high performance caching. This will make your site rank better, helping your SEO. Sucuri offers four caching options. You can...
Non-Cache URLs If you want to disable caching on specific files or directories, there’s an easy way to do it without having to disable the entire cache. Go to the Sucuri Firewall Dashboard and click Performance -> Non-Cache URLs. There...
If your hosting provider has Brotli compression enabled, the Sucuri Firewall will automatically respect the Accept-Encoding headers.
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There are a few simple ways you can clear the Sucuri Firewall cache. Clear Cache – Global To clear all page and file cache at once, simply go to Performance -> Clear Cache – Global in Sucuri Firewall’s settings. Then click the...