Website performance optimization is a game-changer, but without adequate security optimal performance cannot be achieved.

Performance is an important indicator of the website, unless there is no choice, otherwise users cannot stand a slow response website. A slow-opening website can lead to serious user churn, and often website performance issues are triggers for website architecture upgrade optimization. It can be said that performance is an important aspect of website architecture design, and any software architecture design must consider the performance issues that may be brought about.

It is precisely because performance problems are almost ubiquitous, so there are many ways to optimize the performance of the website. From the user’s browser to the database, all aspects that affect the user’s request can be optimized. On the browser side, you can improve performance through browser caching, page compression, reasonable layout of pages, and reduced cookie transfer.

You can also use the CDN to securely distribute static content on your website to the nearest network service provider’s computer room, allowing users to access data through the shortest access path. You can deploy a reverse proxy server in the website of the website to cache hotspot files, speed up the response of requests, and reduce the load on the application server.

On the application server side, server local cache and distributed cache can be used to process user requests by storing hotspot data in memory, speeding up the request processing process and reducing database load pressure. User requests can also be sent to the message queue for asynchronous task processing through asynchronous operations, while the current request directly returns a response to the user.


Website Performance

Multiple application servers can be used when there are many users with high concurrent requests on the website. Form a cluster to serve externally, improve overall processing capacity and improve performance. At the code level, you can also optimize performance by using multithreading and improving memory management.

On the database server side, performance optimization methods such as indexing, caching, and SQL optimization are relatively mature. The performance of the NoSQL database, which is still in the ascendant, is becoming more and more obvious by optimizing the data model, storage structure, and scalability characteristics.

There are a number of indicators for measuring website performance. Important are response times, TPS, system performance counters, etc. These metrics are tested to determine if the system design meets its goals. These indicators are also important parameters for website monitoring. By monitoring these indicators, system bottlenecks can be analyzed, website capacity can be predicted, and abnormal indicators can be alarmed to ensure system availability.

For the website, performance compliance is only a necessary condition, because it is impossible to predict the access pressure that the website may face, so it is necessary to examine the performance problems that may occur when the system exceeds the load design capability under high concurrent access conditions.


For large websites, especially well-known websites, website smashing and service unavailability is a major accident, which affects the reputation of the website, and may be put on a lawsuit. For e-commerce sites, the fact that the site is unavailable also means loss of money and users. So almost all websites promise 7724 is available, but in fact it is impossible for any website to reach the full 7724 available. There will always be some downtime.

After deducting these failure time, it is the total available time of the website. This time can be converted into the availability of the website. Indicators, in order to measure the usability of the website, some well-known large websites can achieve 4 or more availability, that is, availability is more than 99.99%. Because the server hardware used by the website is usually a common commercial server, the design goals of these servers are not guaranteed to be highly available. That is to say, there is a possibility that the server hardware failure occurs, which is commonly known as server downtime.

Large websites usually have tens of thousands of servers, and there will be some server downtime every day. Therefore, the premise of high-availability architecture design is that server downtime will occur, and the goal of high-availability design is when the server is down. The service or application is still available.

The main means of high availability of the website is redundancy. For an application server, multiple application servers form a cluster to jointly provide services through load balancing devices. Any server that is down, only need to switch requests to other servers to achieve high application availability, but a prerequisite is the requested session information cannot be saved on the application server. Otherwise the server is down, the session is lost, even if it will be used. In addition to the operating environment, the high availability of the website requires quality assurance of the software development process.

Through pre-release verification, automated testing, automated publishing, grayscale publishing, etc., the possibility of introducing faults into the online environment is reduced, and the scope of faults is prevented from being expanded. The goal of measuring whether a system architecture design meets high availability is to assume that the system as a whole is still available when any one or more servers in the system are down and when various unforeseen problems occur.



Large websites need to face a large number of users with high concurrent access and store huge amounts of data. It is impossible to process all user requests and store all data with only one server. The website clusters multiple servers to provide a service together. The so-called scalability refers to alleviating the increasing pressure of concurrent users and increasing data storage requirements by continuously adding servers to the cluster.

The main criterion for measuring the scalability of an architecture is whether it is possible to build a cluster with multiple servers and whether it is easy to add new servers to the cluster. After joining the new server, can you provide services that are indistinguishable from the original server? Is there a limit to the total number of servers that can be accommodated in the cluster?

For an application server cluster, as long as the data is not saved on the server, all servers are peer-to-peer, and the server can be continuously added to the cluster by using a suitable load balancing device.
For a cache server cluster, adding a new server may invalidate the cache route, which may result in most of the cached data in the cluster being inaccessible. Although the cached data can be reloaded through the database, if the application has been heavily dependent on the cache, it may cause the entire site to crash. There is a need to improve the cache routing algorithm to ensure the accessibility of cached data.

Although the relational database supports data replication, master-slave hot standby and other mechanisms, it is difficult to achieve scalability of large-scale clusters. Therefore, the cluster scalability scheme of relational databases must be implemented outside the database, and will be deployed through routing partitions and the like. Servers of multiple databases form a cluster.

As for most NoSQL database products, because they are congenitally for massive data. Therefore, its support for scalability is usually very good, and it can achieve linear scaling of cluster size with less operation and maintenance participation.

Unlike other architectural elements that focus on non-functional requirements, the site’s extensibility architecture focuses directly on the functional requirements of the site. The rapid development of the website and the continuous expansion of its functions. The design of the website’s architecture to enable it to respond quickly to changes in demand is the main purpose of the website’s scalable architecture.

Website Security

The internet is open and anyone can access the website from anywhere. The security architecture of the website is to protect the website from malicious access and attacks, and to protect the important data of the website from being stolen. The standard for measuring the security architecture of a website is to respond to existing and potential attacks and secrets, and whether there is a reliable response strategy.

The main criterion for measuring the scalability of a website architecture is whether it can achieve transparency on existing products when adding new business products to the website, and can launch new products without any changes or changes to existing business functions. Whether there is little coupling between different products, one product change has no effect on other products, and other products and functions need not be implicated to change.

The main means of website scalable architecture are event-driven architecture and distributed services. The event-driven architecture is typically implemented in a website using message queues, which construct user messages and other business events into messages that are posted to the message queue, and the message handler acts as a consumer to retrieve messages from the message queue for processing. By separating message generation from message processing in this way, new message producer tasks or new message consumer tasks can be transparently added.

Distributed services separate business and reusable services and are invoked through a distributed service framework. New products can implement their own business logic by calling reusable services without any impact on existing products. When the service upgrade of the reusable service is changed, the application can be transparently upgraded by providing a multi-version service, and there is no need to force the application to synchronize changes.

In order to maintain market position, large websites will also attract third-party developers, call website services, use website data to develop peripheral products, and expand website business. Third party developer is main way to use web services is the open platform interface provided by large websites.


Five Recommendations for Quick Performance and Security Improvements for your Website

These two goals; performance and secuirty are critical to running a successful website. We have listed five technologies that should be considered for implementation to improve the performance and security of our website:

A free option for obtaining the certifications for Encryption SSL may help you achieve better performance and security. There are performance enhancements introduced by the HTTP/2 HTTP 1.1 protocol successer. The method for compression known as Brotli compression can help you reduce the size of file better than Gzip. It speeds up the loading process of images in PNG and JPEG typically. To efficiently distribute the content and faster cache there are a range of servers known as content distribution network around the globe.

1. Encryption (SSL)

You can migrate if HTTP is enabled in your site and Google may treat it in the ranking signal if you have HTTPS.


In order to make your website more secure, your website should be run via HTTPS and encrypted.

3. Brotli compression

In 2015, this technology was built by Google as a compression algorithm, supported by all the browsers except IE. Brotil in compassion to Gzip, is more popular in context of its global progress and availability, especially CDN support, server support, and CMS plugin.

4. WebP image

You can use the WebP name format for image as one of our recommendations. Google developed this one just like. It helps to make the smaller image like Brotli. WebP was developed by Google to make the image smaller. WebP servers for main image parts as similar to JPEG and PNG. It saves 80% of costs as it takes much smaller space.

5. Content distribution network

Content distribution network (CDN) is the foremost and last recommendation to be made. It involves set of services for caching web resources. The traffic is streamed to server edge which is near to the visitor, while using CDN server.



Performance and security are core elements of a website architecture. These issues can be solved, and most of the challenges of large-scale Canadian website can be addressed by the application architecture deployed on multiple servers to provide access at the same time. The data storage is backed up on multiple servers. Any server downtime will not affect the overall availability of the application, nor will it result in data lost.

Invision Solutions can provide you complete guidance on performance optimization and security maintenance. You must realize that business processing cannot be completed when the user requests forwarding to another server. For the storage server, because the data is stored on it, the data needs to be backed up in real time.

When the server is down, the data access needs to be transferred to the available server, and the data is restored to ensure that the data is still available when the server is down. There are a number of things that must be considered when building and maintaining a website, but basically all around how to improve the performance of your website and improve the security of your website.

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