Google search results: the evolution of the SERPs

Right from the start, Google’s aim was always to develop the quickest and most precise web search in the world. And for almost two decades, the company has continued to focus on improving its searches and offering its users the best and most relevant results possible from across the web. One way of improving is the continuous further development and adaptation of the basic search algorithm. In our overview of the most important Google updates, you’ll find a list of all the most important steps that have fundamentally changed the way Google’s search engine works behind the scenes. These developments are very important for all website operators – both the Panda and Penguin updates have massively changed the work of online marketers, particularly their SEO tasks. The updates also indirectly affect the user as well, of course, as it means all Google customers can expect ever-improving search results. Google has continually succeeded in its attempts to understand the user better, and the Hummingbird update was its biggest breakthrough in this regard, with the establishment of what’s known as the semantic search. But instead of looking at the technical aspects of the different updates, we’re focusing on the search engine results pages, or SERPs. How have Google’s SERPs changed? Which additional elements have been added over time? The graphic below offers a nice overview of Google’s development from registration of the Google domain right up to the search engine we all know today:

The Google online search came into operation in 1998. This was precisely the right time too, as the turn of the century saw an explosion in the number of websites. With such a dramatic influx of information, it became increasingly difficult to find content that was actually useful for users. For this reason, Google’s founders Larry Page and Sergey Brin developed their PageRank algorithm, designed to tackle this problem by ranking websites in the SERPs based on relevance to the search.

The screenshot below shows Google’s search results for a search from 1998, the year of its foundation:

The screen capture above shows how Google only offered organic search results at the time. Until just a few years ago, Google only displayed up to ten search results on a specific page. As the image below shows, the look and layout of the Google SERPs has changed a lot:

Until the summer of 2000, Google was still entirely free of adverts. The competition had already begun to integrate banner display adverts into their search engine results. But it wasn’t until midway through this year that they launched the now world famous Google AdWords. The developers have one basic requirement for the display ads: they should be just as relevant to the user search as all the other Google search results. The user should also always have the option to decide between the paid advert displays and the organic search results. This principle has always remained the same, even though the quantity, identity, placement, and design of the AdWords display adverts has been changing regularly since its creation. Just as before, Google continues to show the display ads in the upper half of the SERPs, above the organic search results as well as in a separate, private area on the right hand side. Some AdWords display ads are also shown at the bottom of the page, underneath the organic search results – but there are never more than a maximum of four adverts displayed within the search results (combined total of ads displayed above or below).

The right column of adverts results have become less important for advertisers, partly because of the Knowledge Graph (see below) but predominantly because of the increased use of mobile browsing. When displayed on a mobile device, the right site of the page isn’t visible due to the narrower display.

For this reason, most ads are displayed in the main, left-hand column. The exception to this is for shopping adverts, which are sometimes still found in the right-hand column for online shop products:

Of course, it’s not just the invention of AdWords that has caused changes between the original version of the search results and the modern Google SERPs we’re all used to seeing today. The new Google search results have developed from a simple search for web pages to a universal search (known as ‘Universal Search’) for all online content.

The following video offers a good overview into the development of Google over the years:

The invention of the vertical search engine and Universal Search is a key factor in explaining how Google was able to become the universal and most used search engine. Some of the most important vertical search functions include:

• Maps

• News

• Videos

• Images

• Shopping

• Books

Through Quick Answers, users get an answer to their specific question as quickly as possible – eliminating the need to have to click onto a website.

A similar function is also available when it comes to answering queries about the weather. By searching ‘weather London’, users immediately receive Google’s weather service prognosis, as powered by weather.com, as an overview for the coming week:

The Knowledge Graph offers users structured and detailed answers on the search engine results page itself.  Facts about people, locations, or objects are presented by Google as an overview in a separate field on the SERPs. The examples below show just how much these overviews can vary. In the first example, a user search for avocado offers a full list of nutritional facts about the fruit. In the second, a search for the Eiffel Tower offers historical data and facts about its architecture and visiting times.

When the Knowledge Graph is displayed, it’s often accompanied by the Carousel display too. The Carousel is a row of images that are semantically relevant to the Google search results and offer additional information to scroll through. The intention here is to offer users information and connections to their search term that they perhaps wouldn’t otherwise know to search for.

A more condensed form of this carousel is displayed to users when they search for holidays or sights in particular countries or continents:

Google regularly changes its search results and tests these changes on small user groups before the SERP updates are rolled out for all users. In the past few years, individual user groups have received a preview of:

• Google search results displayed in two columns

• An integrated search function for the SERPs

• Paid adverts in local search results

• A timeline as an extension to the Knowledge Graph

In all of the above examples listed, the tests results led to the ideas being revised or scrapped. In some cases, only text colours, sizes, or formats are changed in the Google SERPs. Some of the changes to the Google search results also have an impact upon search engine optimisation. One procedure that’s always particularly hair-raising for SEO departments is making sure the title and description length of web pages display properly on a Google SERP. As of May 2016, testing began on the possibility of longer text displays in the Google results pages. If the search engine leader decided to change the ‘search snippets’ for all users, website operators will have their work cut out when it comes to deciding what to do with the extra space, for example including a CTA (Call to Action). At present, Google is testing changes to its design and its structuring. And it appears as if the changes are going to focus on making the desktop version fit better for searches on mobile devices. As you can see in our screenshots above, the new look will bring a typically mobile feel to the desktop display – with the right-hand column used rarely. Since desktop display screens are much wider than the displays on mobile devices, this looks slightly unusual at first glance. This new, condensed display means that the Knowledge Graph will move from the side to underneath the search results on mobile devices. But on a desktop, this creates a lot of white space for the user and involves more scrolling. Another change is that the Google search results will be displayed each on a separate card, similarly to the mobile display in the example below: