Discover SEA, vital for your digital marketing strategy! Boost the online visibility with paid search and targeted bidding.
SEA refers to the practice of placing paid advertisements in search engine results. search engines to quickly promote your services or products. Through these targeted campaigns, you can reach a specific audience who are actively looking for what you have to offer, significantly increasing qualified traffic to your site. website. Mastering SEA is an invaluable skill in your marketing arsenal to ensure your business gets the most out of its digital investment.
Definition of ATS
The origins and development of search engine advertising
Search Engine Advertising (SEA), often referred to as paid search, is a digital marketing discipline that involves purchasing advertising space on search engines to display your ads. This technique emerged with the development of the internet and search engines like Google. Over time, SEA has become more professional, enriched with the emergence of new features, new advertising formats, and increased targeting capabilities, thus meeting the growing need for businesses to be visible to a targeted audience.
Comparison with SEO (Search Engine Optimization)
To understand your place in the online SEO ecosystem, you need to distinguish between SEA and SEO. SEO, or natural referencing, is based on optimizing your website to improve its positioning in the organic results of a search engine, while SEA focuses on purchasing advertising space to place your ads. Unlike SEO, which requires time to bear fruit, SEA offers almost immediate visibility but requires a financial investment.
The different types of advertising in SEA
In the field of SEA, you'll encounter different types of advertising. Classic text ads, which generally appear at the top of search results pages. Display ads, which appear as banners or images on partner sites. Shopping ads, ideal for e-commerce, highlight products with photos and prices directly in search results. Finally, there are also video ads, often used on platforms like YouTube.

The basic principles of ATS
How auctions work
SEA operates on an auction system. You choose to place a bid on specific keywords; when these keywords are searched, the search engine determines which ads are most relevant and bid high enough to be displayed. This process is automated and is based on the amount you are willing to pay per click (CPC), per thousand impressions (CPM), or per action/acquisition (CPA). Understanding this mechanism is essential to effectively manage your budget and campaigns.
Keyword relevance
Keyword selection is crucial to the success of your SEA campaigns. These keywords must correspond to the queries entered by the users you wish to target. You need to pay attention to their relevance, search volume and competitiveness. A good choice of keywords improves the performance of your campaigns and your return on investment.
Writing ads
The design of your ads is also a strategic consideration. Ads must be clear, attractive, and encourage action. They must reflect what was promised in the keywords while also being relevant to the landing page they link to. A good ad will not only contribute to a better click-through rate but also a positive user experience.
The major ATS players
Google Ads: market leader
Google Ads is Google's advertising system and the main player in the SEA market. This service offers a wide range of advertising options on Google's search engine, as well as on other services such as YouTube and the Google Display Network. Its sophisticated platform allows for precise targeting and a wide variety of tools for campaign tracking and optimization.
Bing Ads and other platforms
Bing Ads, now known as Microsoft Advertising, is another major SEA platform, although it has a smaller market share compared to Google Ads. However, there are also other platforms such as Yahoo! Ads and specialized networks that can offer interesting opportunities, depending on your target market.
The role of specialized SEA agencies
SEA agencies play a key role in supporting businesses in managing their advertising campaigns. They provide expertise in keyword selection, effective ad writing, results tracking, and campaign optimization. Working with an agency can be particularly beneficial for maximizing the performance of your advertising investments and remaining competitive.
Setting up a SEA campaign
Define campaign objectives
Before launching a SEA campaign, it's essential to determine your goals. This could include increasing traffic to your website, generating sales or leads, or building brand awareness. Your goals will determine the campaign structure, keyword selection, ad writing, and selection of the appropriate bid type.
Selecting the right keywords
Keyword selection should align with campaign goals and user intent. It is recommended to use keyword tools keyword search which provide data on search volume and competition. A good practice is to group keywords by theme to create targeted ads relevant to each group.
Creating ads and choosing formats
Once you've selected your keywords, you need to create your ads by choosing catchy headlines, compelling descriptions, and creating a relevant landing page. Choosing ad formats also plays a crucial role in the appeal and performance of your ads.
Budget and bidding strategy
Determining the budget for a campaign
Your budget is a determining factor in your SEA campaigns. It must be aligned with the size of your target audience, market competitiveness, and your financial resources. The distribution of your budget over the duration of the campaign must also be carefully planned to avoid overspending and maximize the impact of your ads.
CPC, CPM, CPA strategies
Different bidding strategies, such as cost per click (CPC), cost per thousand impressions (CPM), or cost per acquisition (CPA), should be chosen based on your goals. CPC is often used to generate traffic, CPM for brand awareness, while CPA is used to measure the effectiveness of ads in terms of conversion.
Optimizing acquisition costs
Cost-per-acquisition optimization involves adjusting and testing your bids and targeting to reduce your cost per acquisition while maximizing conversions. This can include automated bidding strategies, more refined audience segmentation, or tweaking your ad elements.
SEA campaign optimization
Analysis and interpretation of results
It's crucial to measure the performance of your campaigns by analyzing the data collected by ATS platforms. This enables you to judge the effectiveness of your ads, keywords and bidding strategy. Analyzing these results will help you identify areas for improvement.
A/B Testing of ads
A/B testing, or comparative testing, is a method of comparing different versions of an ad to determine which performs best. This allows you to optimize your ad copy, keyword selection, and other campaign elements.
Readjustment of campaign parameters
Once the data has been analyzed and the ads tested, it's time to readjust your campaign settings. This may include adjusting bids, pausing underperforming keywords, or reallocating your budget to the best-performing items.
Importance of Quality Score
Understanding Quality Score
The Quality Score is a search engine's assessment of the relevance of your ads, keywords, and landing pages. A high score indicates that your ads are well aligned with user intent, resulting in lower costs and better rankings.
Impact on cost per click and visibility
A good Quality Score can significantly reduce your cost per click (CPC) and improve the visibility of your ads. Search engines reward advertisers who provide a good user experience by offering relevant and useful ads.
Improved Quality Score
To improve your Quality Score, you need to optimize the relevance of your ads, the match between your keywords and the content of your landing pages, and the user experience on your site. You also need to regularly monitor performance to make adjustments when necessary.
Mobile SEA and in-app advertising
Specificities of mobile ATS
Mobile ATS has its own characteristics due to user behavior on mobile, which is different from that on the computer. It's important to design ads and landing pages that are optimized for smaller screens and tactile interactions.
Advertising for mobile applications
For mobile apps, special formats like app install ads can be used to encourage downloads. These ad formats are designed to seamlessly integrate into user flows on mobile platforms.
Trends and adapting to new Internet uses
Your ATS strategy must constantly evolve to keep pace with new trends and changing internet user habits. This includes adjusting your campaigns for new devices, new ad formats, and new features offered by SEA platforms.
Mastering ad extensions
Available extension types
Ad extensions allow you to add additional information to your ads, such as additional links, a phone number, locations, or reviews. These extensions can significantly increase the performance of your ads by providing more context and entry points for users.
Best practices for ad extensions
To best use ad extensions, it's recommended to select them based on the ad objective and your target audience. Extensions should be relevant and provide added value to the user.
Case study: the effect of extensions on CTR
Case studies have shown that ad extensions can significantly improve click-through rates (CTR). Improving CTR is not only beneficial for generating more traffic, but can also positively impact your Quality Score, further reducing your costs.
SEA and the legal framework
Data protection compliance (RGPD)
Compliance with personal data protection, particularly with respect to the General Data Protection Regulation (GDPR), is imperative when implementing your SEA campaigns. You must ensure transparency and user consent when collecting and using their data.
Legal constraints on ad content
The content of your advertisements must comply with the legal requirements of the country where they are being advertised. It is essential to be aware of local restrictions regarding the advertising of certain products or services and to strictly adhere to them.
SEA in different countries: understanding the legal specifics
When your SEA campaigns target multiple countries, it's important to understand and comply with the legal requirements of each market. Regulations regarding online advertising vary from country to country, requiring a tailored approach that complies with local laws.
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