SEO
Search engine optimization for businesses that don't want to wait to be found by chance. We make sure your website appears on Google and stays there.
SEO Agency
SEO isn't a project with an end date—it's an ongoing process. We analyze where your website stands, develop a strategy, and implement it—technically, in terms of content, and in a measurable way.
Audit, Strategy, and Implementation
All Under One Roof
Technical SEO directly within the development team
Transparent reporting instead of
monthly PDFs full of clichés
Understand first, then optimize
Every SEO collaboration begins with an audit. We analyze your website for technical weaknesses, content gaps, and missed keyword opportunities. The result isn’t an 80-page PDF that ends up in a drawer, but a prioritized action plan with specific next steps. Afterward, you’ll know exactly what works, where the biggest opportunities lie, and where we should start. If you’d like, we’ll implement the measures right away.
SEO and development go hand in hand
Many SEO efforts fail because they’re treated as separate from the development team. At our company, SEO and web development work under one roof. We implement technical SEO—such as load times, crawlability, structured data, and Core Web Vitals—directly in the code. No tickets to an external team, no waiting times. Whatever the analysis reveals, the development team implements it within the same week. Performance optimization and search engine optimization go hand in hand at our company.
Search engine optimization consists of many components that must work together. Here you can see the areas we’re working on for you and what each one offers.
These companies know how we work
Before we start working on content or technical aspects, we determine what your target audience is actually searching for. We analyze search volume, competition, and search intent for your relevant topics. This results in a prioritized keyword list that distinguishes between short-tail and long-tail keywords. “Solar system” is difficult to rank for, but “Solar system installation Bielefeld” attracts more relevant visitors with a clear intent. We identify the keywords that are realistically achievable while offering the greatest impact on your business. This list serves as the foundation for your content creation, page structure, and on-page optimization. We assign specific keywords to each existing and planned page to prevent keyword cannibalization and ensure that every URL has a clear ranking goal. Without this step, any SEO agency is working based on guesswork.
„In addition to the entire team’s tremendous expertise, we especially appreciate how easy and quick it is to get in touch with them, even when things get urgent. Every problem, no matter how small, is taken seriously and resolved immediately.“
Julian Ellermann
arcus physio
„Since we started working with seitenweise, our website has improved significantly. In 2023, they used their extensive expertise to transform our static website into a dynamic WordPress site.“
Dirk Bockelmann
DFT
„I’ve worked with many digital agencies and seitenweise easily tops them all. They’re extremely accommodating and easy to work with. Their team seamlessly translates our objectives and requirements into impressive digital deliverables, always on schedule and within our budget.“
Locke Truong
SEO
„To me, having a strong partner is important. Someone who is “passionate” about their work, who offers well-reasoned professional objections but also accepts and continues to fully support my decisions as a client when I choose a different path. I’ve been working very successfully with seitenweise in this way for many years—both in day-to-day operations and on many large-scale projects.“
Veal from Martina
Liebich & Partner
Here's how we get your SEO project started
Audit and Assessment
We analyze your website for technical weaknesses, content gaps, and keyword potential. To do this, we review site architecture, load times, indexing, and current rankings. We also take a look at the competitive landscape: who is currently ranking for your most important keywords, and why? Based on the results, we develop a prioritized action plan that identifies where the greatest leverage lies.
Strategy and Keyword Plan
Based on the audit, we develop an SEO strategy with specific goals, keyword clusters, and a roadmap. We determine which pages should be optimized, which should be created from scratch, and which should be merged. The keyword plan assigns primary and secondary keywords to each page to ensure that no keywords rank twice and that no gaps are left. This gives you a clear roadmap that you can also share internally.
Implementation and Content
We implement the technical measures directly and support you in creating content. We’ll decide together whether we’ll provide the text or whether your team will write it based on our briefings. At the same time, we’ll optimize on-page elements, internal linking, and structured data. Every action is documented and implemented in a transparent manner so that you always know what has happened and why.
Monitoring and Further Development
After implementation, we monitor how rankings and traffic are performing. If an important keyword drops in rank, we catch it early and can take targeted action. In regular reviews, we adjust the strategy, expand the keyword list, and identify new opportunities. SEO isn’t a project with an end date. If you want to stay visible in the long term, you have to stay on top of it. We’re here to support you every step of the way.
Frequently
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We turn search queries into your customers.
seitenweise is a digital agency based in Bielefeld, founded in 1999. With over 100 clients and more than 500 projects, we’ve proven that we build long-term partnerships, not just take on individual projects. Our focus in SEO is on measurable visibility: audit, strategy, technical implementation, and content—all from a single source. Because our SEO and web development teams work together, technical measures are implemented directly rather than delegated through intermediaries. This means streamlined processes, honest assessments, and results you can understand.
Marcel and André are your points of contact at seitenweise. They'll be happy to answer any questions you have about SEO.
Whether it's an SEO audit, content strategy, or ongoing optimization: tell us where you stand and what you're planning. No obligation—it only takes 30 minutes.