Recipes

Check out these snippets of code that you can use today to extend Cloudflare.

Lambda@Edge Tutorials
VCL to Workers Tutorials
A/B Testing
Aggregating Multiple Requests
Altering Headers
Bulk Redirects (301 / 302)
CORS Preflight Requests
Conditional Routing
Country Blocking
Hot-link Protection
Mobile Redirect by Device Type
Originless Responses
Post Requests
Pre-shared Keys
Setting a Cookie
Signed Requests
Static Site Hosting
Streaming Responses
TLS Version Blocking

THIS SOFTWARE IS PROVIDED BY CLOUDFLARE “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CLOUDFLARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.