Nginx Robots Exclude From Caching
What is Caching?
Caching is one of the most important tools when it comes to website performance. Caching allows web servers to store a copy of requested resources, such as images, CSS, and HTML, so that requests for these resources can be served more quickly and efficiently in the future.
By utilizing caching, website load times can be decreased dramatically, allowing visitors to view pages faster than ever before. In addition, caching can also be used to reduce server load, allowing web servers to handle more concurrent requests without needing to scale up the hardware.
Caching is typically used on static content, such as images and CSS files, but can also be used on dynamic content such as HTML pages. This is known as page caching, and it is often used in conjunction with a web server accelerators such as Nginx.
What is Nginx?
Nginx is a web server system developed by Igor Sysoev back in the early 2000s. It is a high performance web server that is known for its features and stability. In addition to being used as a web server, Nginx is also used as a reverse proxy, HTTP cache, and as a load balancer.
When used as a web server, Nginx can be configured to cache certain types of resources, such as images, CSS, and HTML files, in order to reduce page load times and improve overall website performance. Because of its caching capabilities, Nginx is often used as a front-end proxy for web applications as a way to reduce server load and improve performance.
How to Exclude a Post From Caching?
When using Nginx as a web server, there may be certain pages that you do not want to be cached. For example, if your site contains a page that displays frequently changing information, such as a blog post, you may not want it to be cached so that the most up-to-date version of the page is always presented to visitors.
To prevent Nginx from caching a specific page or post, you will need to add a special header to the response from Nginx that instructs the server to not cache the response. This header is known as the “Cache-Control: no-cache” header and it can be added in the Nginx configuration file.
For example, to exclude a page with the URL “/post” from being cached, you would add the following line to the Nginx configuration file:
add_header Cache-Control: no-cache "/post";
Once this header has been added to the configuration file, any requests for the page will be served without being cached by Nginx.
How to Exclude a Directory or Sub Directory?
In addition to excluding individual pages from being cached, Nginx also allows you to exclude entire directories or sub-directories from being cached. To accomplish this, you will need to add a special header to the response from Nginx that instructs the server to not cache the response.
For example, to exclude the directory “/examples” from being cached, you would add the following line to the Nginx configuration file:
add_header Cache-Control: no-cache "/examples/**";
Once this header has been added to the configuration file, any requests for files or folders within the specified directory will be served without being cached by Nginx.
How to Exclude a URL patterns?
In certain cases, Nginx can be configured to exclude certain URL patterns from being cached. This can be done by adding a regular expression to the “Cache-Control: no-cache” header. For example, if you wanted to exclude any URL that began with “/admin/” from being cached, you could add the following line to the Nginx configuration file:
add_header Cache-Control: no-cache "^/admin/.*";
Once this header has been added to the configuration file, any requests that match the specified regular expression will be served without being cached by Nginx.
Conclusion
In conclusion, Nginx can be configured to exclude certain resources, directories, and URL patterns from being cached. This can be done by adding special headers to the Nginx configuration file. By excluding certain types of content from caching, you can ensure that your web server is optimized to serve the most up-to-date version of the content to your visitors.
FAQs
Q1: What is Caching?
A1: Caching is a mechanism in which web servers store a copy of requested resources, such as images, CSS, and HTML, so that requests for these resources can be served more quickly and efficiently in the future.
Q2: What is Nginx?
A2: Nginx is a web server system developed by Igor Sysoev back in the early 2000s. It is a high performance web server that is known for its features and stability.
Q3: How do I exclude a page from being cached?
A3: To exclude a page from being cached, you will need to add a special header to the Nginx configuration file. This header is known as the “Cache-Control: no-cache” header and can be added using the add_header directive.
Q4: How do I exclude a directory or sub-directory from being cached?
A4: To exclude a directory or sub-directory from being cached, you will need to add a special header to the Nginx configuration file. This header is known as the “Cache-Control: no-cache” header and can be added using the add_header directive.
Q5: How do I exclude a URL pattern from being cached?
A5: To exclude a URL pattern from being cached, you will need to add a special header to the Nginx configuration file. This header is known as the “Cache-Control: no-cache” header and can be added using the add_header directive along with a regular expression.
Thank you for reading this article. Please read other articles related to Nginx and caching.
Related Posts:
- Nginx Proxy Cache Redis Wordpress Centos Nginx Proxy Cache Redis Wordpress Centos Understanding Nginx Proxy Cache Nginx Proxy Cache is a web-acceleration software from Nginx, Inc. It is designed to speed up dynamic web content delivery.…
- Googlec Cloud Hosting Nginx Caching Proxy Google Cloud Hosting Nginx Caching Proxy What is Nginx? Nginx is an open source web server typically used to serve high-traffic websites. It offers a powerful set of features and…
- Arrti Nginx 1.2.1 Arrti Nginx 1.2.1 What is Nginx? Nginx is a fast and powerful open-source web server platform that can be used to serve webpages and applications. It is widely used on…
- Haproxy Nginx X-Forwarded-For Haproxy Nginx X-Forwarded-For What is Haproxy and Nginx? Haproxy and Nginx are two web servers commonly used for load-balancing and hosting websites. Haproxy is a high performance reverse proxy that…
- Nginx Conf Sample Using Cache Nginx Conf Sample Using Cache Introduction Caching is an essential technique for website performance optimization. It helps to reduce server workload, enable scalability and serve contents faster. One of the…
- Nginx Regex Location Cache File Ngnix Regex Location Cache File What is an Nginx Regex Location Cache File An Nginx regex location cache file is a type of configuration file used to make the web…
- Configure Nginx As Proxy Server Configure Nginx As Proxy Server Introduction Nginx is a software application used for serving dynamic web pages and web content. It is an open source, lightweight and highly modular web…
- Reverse Proxy Nginx Centos 7 Reverse Proxy Nginx Centos 7 What is a Reverse Proxy? A reverse proxy is a type of proxy server that retrieves resources on behalf of a client from one or…
- Nginx For Routing Kubernetes Cluster Nginx For Routing Kubernetes Cluster Introduction to Kubernetes and Nginx Kubernetes is an open-source platform that provides components and tools to manage containers within a cluster. It enables an administrator…
- Proxy Pass To Ip Public Nginx Proxy Pass To Ip Public Nginx What Is Nginx Nginx is a web server that is used to serve webpages and content on the internet. It is known for its…
- Nginx Reverse Proxy Etc Default Nginx Reverse Proxy Etc Default What is a Nginx Reverse Proxy? An Nginx reverse proxy is a type of web server that relays client requests from one server to one…
- Nginx One Port Multiple Backend Nginx One Port Multiple Backend Introduction Nginx is one of the most popular web servers used today. It is a powerful, reliable and efficient web server. Nginx is also able…
- Nginx More Than 4 Config Nginx More Than 4 Config Basics of Nginx Nginx is a powerful, open source web server. It is designed to be both efficient and secure. It is used to animate…
- Nginx Can't Access Folder Forbidden Nginx Can't Access Folder Forbidden What is Nginx? Nginx is a web server that is developed to serve static content quickly and efficiently. It is an open source, popular web…
- Apps Server Fault Tolerance With Nginx Apps Server Fault Tolerance With Nginx What is Fault Tolerance? Fault tolerance is the ability of a system or application to remain functioning properly even in the event of a…
- Gateway Time Out Nginx Php Gateway Time Out Nginx Php What is Gateway Time Out Nginx Php? Gateway Time Out Nginx Php is an error that is usually generated when a web server (Apache) is…
- Nginx Alway Direct To Main Domain Nginx Always Direct To Main Domain What is Nginx? Nginx is a popular open-source web server software used by many webmasters and website owners. It is an incredibly fast and…
- How To Count Nginx Scalability How To Count Nginx Scalability What is Nginx? Nginx is an open source web server and reverse proxy server developed by Igor Sysoev. It is a high performance web server…
- Nginx Config Server Proxy_Pass Nginx Config Server Proxy_Pass What is Nginx and How Does it Work? Nginx is an open source web server and reverse proxy used to host websites and distribute traffic across…
- 150.Bm-Nginx-Loadbalancer.Mgmt.Sin1.Adnexus.Net 150.Bm-Nginx-Loadbalancer.Mgmt.Sin1.Adnexus.Net Overview of Nginx Loadbalancer Nginx is an open source, high performance web server and reverse proxy. It can be used as a load balancer to effectively distribute incoming traffic…
- Reverse Proxy Varnish Vs Nginx Reverse Proxy Varnish Vs Nginx What is Varnish? Varnish is a web accelerator and a reverse proxy program that runs on dedicated hardware and acts as a front end for…
- How To Configure Nginx With Varnish How To Configure Nginx With Varnish Introduction Nginx and Varnish are powerful web server tools used to configure and optimize the delivery of web content. Nginx serves requests while Varnish…
- Install Nginx Di Whm Domainesia Install Nginx Di Whm Domainesia Install Nginx Di Whm Domainesia Introduction to Nginx Nginx (engine x) is a popular open-source, high-performance web server written in C. Its main goal is…
- Codeigniter 404 Not Found Nginx Reverse Proxy Codeigniter 404 Not Found Nginx Reverse Proxy What is CodeIgniter? CodeIgniter is an open-source software development framework used for developing web applications written in PHP. The primary goal of CodeIgniter…
- Nginx Vs Express Whats The Difference Nginx Vs Express: What's The Difference? The History of Nginx and Express Nginx is an open-source web server that has been around for over twelve years. It was created in…
- Setting Up Php7 With Nginx Setting up PHP7 With Nginx What is PHP7? PHP7 is the most recent major release of PHP, a server-side scripting language used for dynamic web pages. PHP7 provides accelerated performance,…
- What Is The Difference Between Uwsgi And Nginx What Is The Difference Between Uwsgi And Nginx? What Is Uwsgi? Uwsgi stands for “Unicorn web server gateway interface”. It is a powerful, highly configurable and widely used web server…
- Nginx Version For Php 7 Nginx Version For Php 7 What is Nginx? Nginx is a powerful, open source web server that is used to serve web applications and websites. It is fast, scalable, and…
- Php Share Memory Php Nginx PHP Share Memory & Nginx What is Share Memory in PHP? Share memory in PHP is a system that stores and retrieves data in memory, as opposed to storing data…
- React Js On Nginx Subfolder React Js On Nginx Subfolder Introduction to React Js React Js is a JavaScript library created by Facebook for creating interactive, graphical user interfaces (GUI). It is considered one of…