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Technical SEO

No matter how good your content is, if search engines can't read your website properly, it won't be visible. We lay the technical foundation.

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Technical SEO Agency

Technical SEO ensures that search engines can crawl and evaluate your website without errors. Crawlability, indexing, site architecture, and structured data form the foundation of any successful search engine optimization. Without sound technical foundations, content and backlinks are wasted.

Find technical errors
before Google finds them

SEO and Web Development
All Under One Roof

Measurable Improvements
Instead of PDF Recommendations

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Without technical SEO, good content remains invisible

Google can only index what its crawler can access. Blocked resources, broken redirects, duplicate content, or an unclear URL structure prevent your best pages from appearing in search results. A technical SEO audit uncovers these issues. We analyze crawling behavior, indexing status, and server responses. This results in a prioritized action plan that is implemented directly into search engine optimization and web development. No list of recommendations that ends up in a drawer.

Architecture That Google Understands

Good site architecture benefits both search engines and users. We structure your website so that important pages are easily accessible, internal linking is organized logically, and every URL serves a clear purpose. This applies to both web development and information architecture. Flat hierarchies, descriptive URLs, and a well-thought-out silo structure ensure that Google recognizes the thematic connections within your content and prioritizes your most important pages.

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Technical SEO consists of many components that must work together. From crawl optimization to structured data to mobile performance: Here are the areas where you can strengthen your technical foundation page by page.

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Crawling and Indexing

We analyze how Google crawls your website: which pages are visited, which are ignored, and what errors occur. We immediately resolve issues such as blocked resources, crawl budget waste, and indexing problems. The result: Google fully and accurately indexes your most important pages.

Seitenarchitektur mit Leistungen, Referenzen, Blog und Kontakt

Site Architecture

Your website’s structure determines how search engines understand the relationships between your content. We optimize the hierarchy, internal linking, and URL structure so that your most important pages receive the highest authority. A clear architecture improves both rankings and user experience.

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Core Web Vitals

Load time, interactivity, and visual stability are direct ranking factors. We measure your Core Web Vitals and optimize LCP, INP, and CLS. Our measures range from image optimization and code splitting to server configuration. You can find more details on our Performance Optimization page.

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Structured Data

Schema markup helps search engines understand your content and display it as rich results. We implement the appropriate Schema types: FAQ, HowTo, Organization, Product, and more. Structured data is a crucial factor, especially for GEO and AI SEO.

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Mobile SEO

Google uses a "mobile-first" approach to indexing: Your website’s mobile version determines its ranking. We check whether your mobile layout is complete, the loading times are optimal, and the site is usable on small screens. Responsive design alone isn’t enough to ensure this.

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Redirects and URL Management

Incorrect or missing redirects cost you rankings and users. We check your redirect chains, fix 404 errors, and ensure that no visibility is lost during a website relaunch or restructuring. Every URL has a specific purpose.

These companies know how we work

Googlebot has a limited crawl budget for your website. If it spends time on irrelevant pages, duplicate content, or broken URLs, the indexing of your important pages suffers. We analyze your crawl data from Google Search Console and specialized crawling tools. From this, we identify which pages are blocked, which are duplicated, and which aren’t indexed at all. Our measures range from robots.txt optimization and canonical tags to targeted control of indexing via noindex and nofollow. Crawl optimization is particularly important for large websites with thousands of pages. We ensure that Google finds the right pages and that your content remains up-to-date in the index. Through regular analyses, we detect crawl errors early and resolve them before they impact your visibility. A technical SEO agency first and foremost ensures that this budget isn’t wasted.

What Our Customers Say

„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.“

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Veal from Martina

Liebich & Partner

„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.“

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Dirk Bockelmann

DFT

„seitenweise impressed us with fast delivery, friendly communication, and their patience in incorporating our requests! If you want a fast, attractive, and SEO-optimized WordPress website, you should have one built here.“

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Michael Bykovski

Computerra

„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.“

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Julian Ellermann

arcus physio

Frequently
Asked
Questions

Crawled

Entwined

Kollege stellt dem Team ein Projekt im Besprechungsraum vor

We're clearing out what's slowing down crawlers.

seitenweise is a digital agency based in Bielefeld, founded in 1999. With over 500 projects and more than 100 clients, we combine SEO expertise with technical implementation skills. We don’t treat technical SEO as a standalone service, but rather as an integral part of every web development and search engine optimization project. At our agency, the same team that writes the code also performs the analysis. This streamlines the process and ensures that recommendations don’t get stuck in a queue. Our clients come from Bielefeld, the East Westphalia-Lippe region, and all over Germany. Here, technology and strategy work hand in hand.

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Marcel and André are your points of contact at seitenweise. They'll be happy to answer any questions you have about technical SEO.

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Whether it's a technical SEO audit, crawl optimization, or ongoing technical support: tell us where your website stands. During our initial consultation, we'll show you which technical levers have the greatest impact. No obligation—and it only takes 30 minutes.

Let's go!