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The best tools for testing site speed and how to make your site faster

How To Optimize Website Speed

Running a speed test is the first step in your web optimization journey.

Once you have your methods, you need to know how to interpret them and what to do to improve them.

In the Performance Overview section of your site speed report, you’ll see the main techniques we’ll focus on to help speed up your site:

In addition, you can use the request tracker to see how long the requests are and how it affects those rates.

How To Speed Up First Contentful Paint (FCP)

Let’s start by making your website instantly visible to your visitors; we will use First Contentful Paint, first.

What Is First Contentful Paint?

First Contentful Paint measures how quickly a page’s content starts to appear after your visitor navigates to that page.

It is important to display your main content quickly in order to prevent your visitor from leaving your website. The sooner the user leaves your site, the sooner Google knows that the page may have had a bad experience.

But how do you know exactly what is causing your website to load slowly?

How can you identify which problems are slowing down your site? Let’s find out.

Why Is My First Contentful Paint Taking So Long?

Your FCP may be affected by server connection speed, server requests, slave resources, etc.

It seems like a lot, but there is an easy way to find out exactly what is slowing down your FCP – the application sweat.

This useful tool shows the requests made by your website and when each request starts and ends.

For example, in this window, we first see a request for the HTML document and then two requests to load the styles referenced in the document.

Image showing debug information for the First Contentful Paint metric at DebugBear, October 2022

Why does First Contentful Paint happen after 0.6 seconds? We can break down what is happening on the page to understand this.

Understanding What Happens Before A First Contentful Paint

Before the first pieces of content can be loaded on your website, your user’s browser must first connect to your server. and retrieve the content.

If this process takes a long time, it will take a long time for your user to see your website.

Your goal is to learn what’s going on before your website even starts to load so you can fix issues and speed up the experience.

Loading Page Part 1: The Browser Creates a Server Connection

Before first requesting a web page from a server, your visitor’s browser needs to establish a connection to this supply.

There are usually three steps:

These three steps are performed by the browser, one after the other. Each step requires a round trip from your visitor’s browser to your website.

In this case, it takes 251 milliseconds to establish the server connection.

DebugBear screenshot showing the roundtrip connection used to establish a server connection, October 2022

Page Status Part 2: Browser Requests HTML Document (Time to Get First Byte Here)

Once the server connection is established, your visitor’s browser can request the HTML code that contains the content of your website. This is called an HTTP request.

In this case, the HTTP request takes 102 milliseconds. This duration includes both the time spent on the web page and the time spent waiting for the server to display a response.

After 251 milliseconds to make the connection and 102 milliseconds to make the HTTP request, your visitor’s browser can start processing the HTML response.

This metric is called Time to First Byte (TTFB). In this case, that happens after 353 milliseconds.

After the server’s response is ready, your visitor’s browser spends additional time downloading the HTML code. In this case, the response is quite small and the download is only 10 milliseconds extra.

DebugBear screenshot showing different parts of an HTTP request, October 2022

Page Loads Part 3: Your Website Is Consuming Additional SEO Resources

Browsers do not display, or display, pages immediately after loading the document. Instead, there are usually some built-in resources.

Most pages look bad without a visual interface, so CSS styles are loaded before a page starts rendering.

The additional 2 styles on this website speed sample took 137 milliseconds to load.

Note that these applications do not require a new server connection. The CSS files are loaded from the same section as before and the existing link can be reused.

DebugBear screenshot showing installation resources being loaded after HTML document, October 2022

Page Loading Part 4: The Browser Finds the Page

Finally, once all the necessary resources are loaded, your visitor’s browser can start rendering the page. However, doing this task also requires a lot of processing time – in this case, 66 milliseconds. The LED indicator light indicates the CPU signal function in the sweat view.

DebugBear screenshot showing the steps leading from loading the HTML document to rendering the web page, October 2022

Now we understand why FCP occurs after 632 milliseconds:

Other processing tasks include small tasks such as processing the data in or parsing the HTML and CSS code after downloading. You can see this activity as small gray lines just below the image display.

How To Optimize First Contentful Paint (FCP)

Now that you understand what leads your website is delivering, you can think about how to use it.

Now that the initial parts of your website are loading fast, it’s time to focus on making the entire site load faster.

How Speed Up Largest Contentful Paint (LCP) With DebugBear’s Recommendations

There are several ways to speed up your LCP.

To make it easier, DebugBear gives us some great steps in their Tips section.

Let’s take a look at some sample recommendations and learn how to speed up this site’s LCP.

Recommendation 1: Initiate LCP Image Requests From The HTML Document

If the largest element on your page is an image, the best practice is to ensure that the URL is contained directly in the original HTML document. This will help it start loading faster.

However, this best practice is not always used, and sometimes it takes a long time before the test recognizes that it needs to download the main image.

In the example below, most of the content, an image, is added to the page using JavaScript. As a result, the browser needs to download and process a 200-kilobyte text file before it can find the image and start downloading it.

DebugBear clarification showing a chain of requests leading up to an image request, October 2022

How to Improve: Depending on the website there are two possible solutions.

Solution 1: If you are using JavaScript to lazy load a large image, then adjust the size of the image and remove the lazy loading or change to the modern attribute = “lazy”, which is not requires JavaScript.

Solution 2: In some cases, server-side rendering will prevent the download of the Javascript app before the page can be rendered. However, sometimes it can be difficult to implement.

Recommendation 2: Ensure LCP Images Are Loaded With High Priority

After loading the HTML code of a page, your visitors can see that, in addition to your main image, a large number of additional resources such as styles may need to be loaded.

The goal here is to make sure that your main image, the main image is filled to meet Google’s highest requirements.

Other resources, such as third-party analytics, are not as important as your main image.

Also, most of the images referenced in your website’s HTML will be below the fold after the page is rendered. Some can be completely hidden inside a shipping container.

Because of this, the researchers first set the priority of all image requests to Low. Once the page is displayed, the test finds out which images are important and changes the priority. You can see an example in the window below, as indicated by the asterisk in the priority column.

DebugBear screenshot showing an LCP image installed in the first release, October 2022

The sweat shown although the researcher immediately recognized the picture, did not start downloading, as shown by the color palette.

How to Fix: To solve this you can use a new search tool called priority indicators. If you add the fetchpriority=”high” attribute to an img element, the browser will start loading the image from the beginning.

Recommendation 3: Don’t Hide Page Content Using CSS

Sometimes you may see a request thread and all the program resources are filled but no page is displayed. What’s going on?

A/B testing tools often hide page elements until testing changes are applied to on-page elements. In those cases, the search showed the page but everything is clear.

What can you do if you can’t get rid of the A/B testing tool?

How to Fix it: Check if you can configure the tool to only hide the content involved in A / B tests. On the other hand, you can check if there is a way to speed up the loading of A test tools /B.

DebugBear screenshot showing an image display that hides content by an A/B testing tool, October 2022

Monitor Your Site Speed With DebugBear

Do you want to continue testing your website? Try our paid monitoring tool with a free 14-day trial.

That way, you can check if your performance indicators are working and display any performance indicators on your website.

DebugBear website speed chart, October 2022

The opinions expressed in this article are personal.

Which tool is best for performance testing?

Best Performance Testing Tools

  • WebLOAD.
  • LoadNinja.
  • First.
  • ReadyAPI Performance.
  • LoadView.
  • Keysight’s Eggplant.
  • Apache JMeter.
  • LoadRunner.

Which tool runs performance tests? JMeter is a special tool that can be used for performance and load modeling for testing and measuring the performance of various services. This tool is mainly used for the website and the website.

What are the two types of tools used for performance testing?

We have different types of testing equipment available in the market; some of the most used performance (load) testing tools are as follows: Apache JMeter. LoadRunner[HP]

Which is the best open-source tool for performance testing?

JMeter. JMeter is the most popular open source testing tool with almost as many features as commercial tools. You can record test data, run large load tests, and view various performance metrics in easy-to-understand charts.

Which is better LoadRunner vs JMeter?

The performance of JMeter is less compared to LoadRunner. Small bugs and threats can be identified by this tool, but it cannot detect large-scale threats. The LoadRunner is better and faster to detect the bus that is in the application compared to the JMeter software.

Which tool is better than JMeter?

Loadrunner from Micro Focus is a widely used tool for Load Testing. This is one of the best features in JMeter that offers a monitoring and analysis user interface with color charts and graphs. Category: Continuous testing support.

What are the two types of tools used for performance testing?

We have different types of testing equipment available in the market; some of the most used performance (load) testing tools are as follows: Apache JMeter. LoadRunner[HP]

What is JMeter performance testing?

JMeter benchmarking is the process of testing the performance of a website using JMeter. As an open source, Java-based software, JMeter can also be used for performance testing and load testing.

What is JMeter in simple words? jMeter is an Open Source testing software. A 100% pure Java application for load and performance testing. jMeter is designed to include various aspects of testing such as load testing, performance testing, performance testing, dynamic testing, etc., and it requires JDK 5 or higher.

What is JMeter and how it works?

Jmeter works by sampling the groups of users that send requests to a server or network, and then returns statistics. to a user through visual images. Apache Jmeter’s GUI looks similar to a browser. However, Jmeter cannot display the HTML or JavaScript found in the pages as a browser does.

Is JMeter A automation tool?

JMeter and Seleni are two different tools with different functions in the field of testing. Both of these tools are useful for online usability testing. Basically, JMeter is for performance testing, while Selenium is specifically for Functional Testing.

What is JMeter and why it is used?

What is JMeter? Apache JMeter is an open source, proprietary Java-based software. The software is used to perform performance testing, performance testing, and load testing of web applications. It is used to simulate load behavior and measure performance.

What is JMeter tool used for?

What is JMeter? Apache JMeter is a Java data analysis tool that is designed to test the behavior of applications and measure the performance of applications. Originally designed for online software testing, it has since expanded to include other testing-related tasks.

Is JMeter an automation tool?

Page – JMeter. There are many real-time simulation tools on the market. We use the Apache JMeter automation tool to perform load tests and measure website performance. Apart from the above, we also offer performance, complexity and expansion.

Which is better jMeter or k6?

K6’s improved performance means fewer engines are needed to handle a given load. Rafaela Azevedo made a comparison of the memory used by k6 and JMeter, and these are his results: JMeter took 760 MB of memory. Meanwhile, k6 took up 256 MB of memory.

Is JMeter the best performance testing tool? JMeter is a very powerful tool that can run load and performance tests for different products, regardless of the server or protocol. Either HTTP or HTTPS web services, database, FTP, LDAP, MOM (Message-oriented Middleware) through NoSQL (MongoDB) and JMS.

Which tool is better than JMeter?

Loadrunner from Micro Focus is a widely used tool for Load Testing. This is one of the best features in JMeter that offers a monitoring and analysis user interface with color charts and graphs. Category: Continuous testing support.

Is k6 good for load testing?

Anyone looking to do load modeling is highly recommended to use the k6.

What is k6 for load testing?

Grafana k6 is an open source load testing tool that makes performance testing easy and useful for engineering teams. k6 is free, developer-centric, and extensible. Using k6, you can test the reliability and performance of your systems and capture performance data and problems in the first place.

Is k6 better than JMeter?

The researchers felt that k6 met the needs of their business better than Apache JMeter.

What are four 4 performance tools?

This document describes four performance management tools: Balanced Scorecard, Baldrige, Lean and Studer. These tools have been approved by the National Rural Health Resource Center as effective methods for managing the improvement of work and small rural hospitals.

What are the functional tools? Performance monitoring tools are a type of HR software that helps organizations track employee performance in a consistent and measurable way. It ensures that interrelated departments work together and collaborate in achieving the common organizational goal.

What are the four 4 performance management system stages?

The project implementation cycle is part of the project implementation process or strategy, which is short and uses a step-by-step process. planning, monitoring, reviewing and rewarding processes.

How many stages are there in performance management system?

4 Stages of the Performance Cycle The performance cycle is based on 4 main pillars: planning, monitoring, reviewing and rewarding. Let’s look at each of these 4 steps in more detail to help you understand the performance management cycle.

What are the 4 purposes of a performance management system?

Work Management Objectives and Objectives in HRM It enables the employee to achieve the performance of the work at the standard level. It helps to identify the skills and knowledge needed to perform a good job. It is a very important thing to motivate employees and strengthen the motivation of employees.

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