Skip to content

How To Optimise Your Source Code For SEO

For many, the phrase ‘source code’ may conjure up images of Jake Gyllenhaal repeatedly dying on a train, while for others who may not have seen that movie, the term may sound like science fiction mumbo jumbo. However, within digital marketing and search engine optimisation circles, the source code is an important and beneficial aspect…
Reading Time: 7 minutes
Blog Post

For many, the phrase ‘source code’ may conjure up images of Jake Gyllenhaal repeatedly dying on a train, while for others who may not have seen that movie, the term may sound like science fiction mumbo jumbo. However, within digital marketing and search engine optimisation circles, the source code is an important and beneficial aspect that can influence the performance of your website in terms of SERPs ranking.

Additionally, unlike how convoluted and crazy it may have seemed in the blockbuster movie, source code isn’t that scary at all and isn’t that hard to manipulate to help give your SEO a well-deserved boost. If you’ve already exhausted all the usual beginner SEO practices such as link building and keyword optimisation within your content, here’s a good, intermediate SEO tactic that not every website will be doing. This means that optimising your source code to include basic SEO HTML can be a useful way to climb the rankings above your competitors.

What is a source code?

The source code is the language that web browsers use to figure out how to display your website and its contents. A source code is essentially instructions on where things are meant to be placed and what functionality it can have. Of course, this can’t just be written and explained in simple plain English. Instead, source code uses a variety of different inputs to convey what is being said. It’s these inputs that make source code look really intimidating for beginners, but once you get comfortable with it, it’s really not that hard.

Source code is important for a website, as Google and other search engines use it to figure out what your website is about, and thus, what search results it should rank for (among many other factors, of course.) Due to this, it’s important to occasionally check out your source code and see if there are any basic SEO HTML changes you can make to it.

To view your source code, all you have to do is open the webpage you want to view and input one of the following inputs to your keyboard:

  1. Type CTRL + U if using a PC, regardless of the browser used.
  2. Click View -> Developer -> View Source when browsing in Google Chrome on a Mac

source code

How To Add Source Code

When building a website with a CMS such as WordPress, they might automatically add source code to your content for you, especially if you’re using a plugin to help optimise and create SEO friendly HTML. However, it’s always worth checking your source code before making a page live to ensure that your content is tagged in the exact way you want. To add additional source code or edit it to optimise your website better, you’re going to have to do it manually. To do that, you’re going to need to learn some of the basic and most used tags.

Here’s a list of some of the ones you’re going to need to use to help create basic SEO HTML. You can learn more about this type of thing as well as other SEO tactics at our Intelligence Hub.

  1. Title Tag

If you’re only going to learn one source code tag, make sure that it’s the title tag. The reason for this is simple, it’s the most important element on any web page, as it’s what Google uses to display your webpage when it appears in the search results. To avoid confusing or breaking your website, you need to ensure that there’s only one title tag.

To add it into your source code, simply encompass your copy with the following so that it looks like this:

 

<title>Source Code Optimisation </title>

title tag

When crafting your title for your pages, you want to ensure that it’s both optimised with keywords and also reads well so people are more inclined to click the link and check out your website.

  1. Meta Description

The meta description is a piece of code that goes at the top of your page that is used to help describe and give more information about your page and what it is about. It’s always a good idea to include a meta description into your HTML, as a lot of companies fail to do this, giving you an opportunity to take advantage. The meta description also appears on Google search results and can be a great way to attract more users. It is also a good additional area to include your target keywords to help boost your ranking.

Adding a meta description isn’t too hard; all you have to do is encompass your desired text so that it looks something like this:

 

<meta name=” description” content=” Learn some of the best ways to optimise your source code for SEO to boost website performance.”/>


When writing a meta description, be cautious that there is a character limit of 160 characters, including spaces, so you want your descriptions to be concise and attractive. It’s also a good idea to include a call to action to make it more engaging and to entice a larger readership.

  1. H1 Tags

H1 tags are used to alert the web browser that a piece of text is the main heading of the page and thus needs to be displayed as such. An H1 tag is a great way to help you to organise your webpage better and dictate the layout. What you write here should be warm and inviting and written with a human audience in mind, but it doesn’t hurt to try and optimise it with a natural-sounding keyword.

These basic SEO HTML tags work just like the previous ones did. Simply encompass the heading with the tag so that it looks like the following:

 

<h1> How To Optimise Your Source Code For SEO </h1>

 

In addition to H1 tags, there also exists <h2>, <h3> and even <h4>. These are subheadings that help the web browser better display the content. So using this article as an example, within the source code, the various headings in the piece will look as followed:

 

<h2> What is a source code?</h2>

 

<h2>How To Add Source Code</h2>

 

<h3>1. Title Tag</h3>

 

<h3>2. Meta Description</h3>

 

<h3>3. H1 Tags</h3>

 

As you can see from the example above, H2-H4 tags can be used more than once; however, an H1 tag should only be used a single time per webpage, as this will be the main title for the content.

  1. Internal Links and anchor text

Internal links are vital for a website, as it’s what gives your pages their interconnectivity. It’s a good idea to tag these links to ensure that you have SEO friendly HTML, which can improve your website. This is because when tagging links within the source code, it helps give Google and other search engines an idea of what the page the link goes to is all about, and this can have a whole host of ranking benefits.

To add this piece of basic SEO HTML, you’ll have to enter a specific type of source code. So for the internal link that’s previously mentioned in this article, the source code for it will look like this:

 

<a href=”https://www.clickintelligence.co.uk/knowledge-hub/guides/”>Intelligence Hub</a>

internal link

The URL within the quotation marks is the destination of the link, and the text at the end is the anchor – this is what will be highlighted and hyperlinked within the page. Adding source code like this can help organise your entire website and make it far more understandable for search engines and their algorithms to decipher.

  1. Image Alt Tags

As websites become more and more graphic and visual entities, more imagery and pictures are being included in the design to make them more appealing to users, boosting UX, which is important. However, these images are almost impossible for Google to understand and work out what they’re displaying. If you fail to tag your images, you’ll lose out on a chance to increase your SEO. By tagging images, you’re essentially describing to search engines what the image is about, giving essential context to the picture, which can help improve your site’s performance.

When adding image alt tags to your basic SEO HTML, you only want to use it for images of substance. This means instead of decorative images, you should instead tag images of products or merchandise, diagrams and infographics, your website logo or other brand imagery, screenshots, and photos of your team members.

When adding in an image alt tag, it’ll look something like this:

 

<img src=”(image source)” alt=”Source Code Meta Description Example” class=”aligncenter size-full wp-image-21472”?>

alt tag
This tag then makes it clear that the image is an example of a meta description within a source code. The other parts of the tag give information on the source of the image, which can either be a website or file destination, and then the characteristics of the image, for example, it’s position on the page and size that it is.

Conclusion

There is plenty more basic SEO HTML source code that you can learn and implement; however, for beginners, these are the essential five that you need to learn and understand, which can help tighten up your on-page SEO. Used in conjunction with other great tactics and techniques, over time, it should help improve your website, make it more discoverable on Google, and will crucially allow it to be understood more effectively by search engine algorithms.

New call-to-action

James Owen, Co-Founder & Head Of Search

James has been involved in SEO and digital marketing projects since 2007. James has led many SEO projects for well-known brands in Travel, Gaming and Retail such as Jackpotjoy, Marriott, Intercontinental Hotels, Hotels.com, Expedia, Betway, Gumtree, 888, Ax Paris, Ebyuer, Ebay, Hotels combined, Smyths toys, love honey and Pearson to name a few. James has also been a speaker at SEO and digital marketing conferences and events such as Brighton SEO.

View all Downloads

Downloads

A blue section and the text "The Millionaire Guide On SEO." The right side is filled with scattered U.S. one-dollar bills.

Link Building Vs Managed SEO: What’s Right For Your Business?

Link Building or Managed SEO which is right for me?

Download
The cover of an e-book titled 'How Tech May Change SEO', featuring a depiction of a global cyber web space.

How Tech May Change SEO

SEO is constantly in flux. The methods that digital marketers use to get domains to rank change constantly. What was…

Download
View the Blog

You may also be interested in...

How Many Backlinks Does It Take to Rule Your Niche’s SERPs?

SEO is undergoing a dramatic evolution. Despite this, when it comes to those trusty old…

Content Writing vs Copy Writing: What’s the Difference?

Content writing vs copywriting. It's a debate that often confuses marketers. However, don't underestimate knowing…

What You Should Know Before Buying Content

Content is the fuel that drives digital visibility. It’s the vehicle behind customer engagement and…

How A Full-Funnel SEO & PR Strategy Can Drive Leads & Sales

Want to succeed with your digital marketing? Success, at least in today’s evolving landscape, requires…

A graphic that shows a phone with search icons, change icon and an AI icon.
Google Launches AI Mode In The UK: What Does It Mean For SEO?

Google’s new AI Mode is here. On July 28, 2025, the search engine giant announced…

White Label SEO: The Secret Weapon to Expand Your Services in 2025

Let’s face it, the world of digital marketing is getting crowded. Clients are expecting bigger…

In-House vs. Outsourced SEO: Which Is Right for Your Business?

SEO is what makes your business visible online. It’s an essential part of any strategy…

12 Link Building Techniques That Work in 2025

In 2025, there is one SEO method paving the way for businesses: link building. Though…

View all Guides

Online Guides

The Top 10 Managed SEO Companies For Your Digital Marketing
View guide
Looking For Managed SEO Services? These Are The 5 Best Options
View guide
The Top 5 SEO Audit Agencies You Need
View guide
The Best 10 White Label SEO Companies To Help Your Agency Grow
View guide
The Best 5 Reseller SEO Companies for Agencies
View guide
These Are The Best 5 SEO Companies For Startup Businesses
View guide
The Top 10 International SEO Companies to Grow Your Business
View guide
The 5 Best Enterprise SEO Companies
View guide
Back To Top