But apart from these two factors, you need to take care of another factor as well TTFB.
It is also known to be as Time to First Byte as well and most importantly if you understand it very well, you can actually improve it to good effect.
TTFB actually is the measurement of the time where the start time indicates when a client makes a HTTP request and the end time indicates when the client receives the first byte of the website.
Basically what it does is it measures the time for which the browser sits idle before it receives the first byte of data.
For obvious reason, longer the TTFB, it takes longer to load your website.
Initially, you might think that the time is calculated once the DNS lookup is completed, but the truth is it actually includes 3 steps and it does take the network latency into account.
1. Request to Server
Whenever someone tries to visit your website, their browser will send an HTTP request.
Specifically this step can include a lot of different delays.
In case the server is far away from the client browser, the network latency will affect the delay for sure.
Also, in case the DNS lookup is very slow due to network delays, it will get added to the TTFB as well.
And last but not the least, if your server or the client machine has a complex firewall to process the request, it can add some more delays to the TTFB for sure.
And lastly the internet speed of the client machine is also really important.
2. Server Processing
Once the server receives a request, it will process and generate a perfect response.
In case generating the response requires too many complex db accesses or may be some heavy scripts, or you have a non-optimized WordPress theme, it can take a lot of time and will eventually add it to the TTFB.
3. Response to Client
Once the request is processed, the server will send the response to the client.
It may encounter network delays, slow wi-fi speed, slow internet speed and a lot of factors that can add up to the TTFB.
Steps to Improve your TTFB
To improve the TTFB on your site, you need to follow a few easy steps in order to reduce the delays that add up to make the total TTFB.
Lesser the delays, the better are your TTFB.
Faster WordPress Host
To make sure your TTFB is low, you will have to make sure that you use a specific hosting for WordPress.
Normally, the hosting providers use standard tier plan of Google Cloud for hosting purpose which makes the network delay go high and it adds up to the TTFB.
Whereas a hosting provider that includes all the locations of Google Cloud Server, they tend to let you place your website strategically so as to reduce the tie for response thereby reducing the TTFB.
Utilize a CDN
CDN or Content Delivery Network is a specific kind of technology that helps you in reducing the TTFB especially when you are not able to decrease the physical distance between your user and the server location.
In this kind of situation, you can certainly utilize the benefits of having a CDN and remove some of the delays adding up to your TTFB.
If you conduct test on your server with and without CDN, you will see a drastic change in the amount of TTFB calculated with and without CDN where the TTFB for with CDN is really lesser than the other one.
Utilizing cache on WordPress site
Utilizing the cache facility on WordPress website can actually reduce your TTFB time.
The initial impression of utilizing cache is to load the website pages faster but the important thing to understand where is that it can also decrease the processing time taken by the server as well.
Since the website is cached, so the server does not have to spend a lot of time in processing the request from a user and thereby reducing the time delay added to the TTFB.
To make sure your WordPress is cached, you can utilize different free plugins that will allow you to use the benefits of cache on your WordPress website.
Utilize a Premium DNS provider
DNS always plays an important role in calculating TTFB for your website.
You need to understand that the time taken for DNS look up is always a big deal in terms of TTFB.
Having a DNS provider with a better and faster DNS look up facility can surely help your website not only load a lot faster but also it will help your website reducing the TTFB.
With premium DNS providers at work, your servers will take a lot lesser time in solving the DNS and thereby preparing the response to the browser request a lot faster as well.
You can search for different DNS providers and compare their DNS look up time to choose the one that works fine for your WordPress website.
There are other factors that you can consider while trying to reduce your WordPress website’s TTFB like:
- you can optimize the RAM,
- change network settings on your server,
- reduce the TLS overhead,
- change MYSQL settings,
- enable DB cache in the server, etc.
All these will ensure that your server runs faster and performs well to generate a response against a particular request without any problem and with reduced delay.
Combining these with the above mentioned methods, you can easily get a lot more traffic and enhanced performance of your WordPress website.