Robert Siemens
Co-Founder & Product Director
Co-founder and product director at INSYNC and software engineer with over 10 years of experience in web development. Current focus: React, Next.js and AI development.
- 93
- Guides
- 7
- Press articles
About
Robert Siemens co-founded INSYNC with Justin Kowal. As product director, he is responsible for the design and technology of the websites and web apps the team builds for B2B companies. He is a software engineer and has been working in web development for over 10 years.
His guides come out of project work: stack decisions, relaunches, performance, SEO and visibility in AI answers. He writes about what he decides and implements in projects himself, with numbers and limits instead of marketing promises.
Experience
- Over 10 years of experience in web development
- Co-founder and product director of INSYNC
- Over 250 completed projects with the INSYNC team
- Focus areas: React, Next.js, Astro, Sanity and AI development
Guides by Robert
93 articles
ChatGPT Ads: what they are worth for B2B
ChatGPT Ads have run in Germany since 24 Aug 2026. Costs, format, targeting, privacy, and why we think they are overrated for B2B companies right now.
Google AI Mode: what it means for your website
Google AI Mode explained: how it builds answers from many sub-searches, what that means for clicks and what you should change on your website now.
AI labelling obligation: what your site must show
The EU AI labelling obligation has applied since 2 Aug 2026. Which AI images, AI texts and chatbots on your website need a label and which do not.
llms.txt: What It Really Does for AI Visibility
llms.txt is a Markdown file for language models. What Ahrefs data and Google say it achieves, how to create one, and what works better for AI search.
Wix Studio's end: what we know, what to do
Is Wix Studio ending? What Wix told us, what is still missing officially, what you can export and which alternatives fit B2B company websites.
301 Redirects: A Practical Guide for Relaunches
301 redirects done right: how they differ from 302, the redirect map for a relaunch, how to implement them and the mistakes that cost rankings.
Astro Framework: What It Is and When to Use It
Astro Framework explained: zero client-side JavaScript by default, Islands for interactivity, the limits against Next.js and what running it costs.
Astro vs Next.js: Which Framework to Pick
Astro vs Next.js compared: Astro for content-driven sites, Next.js once app logic appears. Table, our own measurements and a clear decision rule.
CMS Migration: Process, Cost and Rankings
CMS migration without losing rankings: the six phases, the redirect map, cost from 8,000 € net, 3-6 weeks to launch and how to pick your target system.
What Is a Headless CMS? A Guide for B2B Companies
Headless CMS explained for B2B websites: how it works, headless vs WordPress vs Webflow, benefits, vendors, 2026 costs, and when a classic CMS is enough.
Headless WordPress: Keep WordPress, Swap Frontend
Headless WordPress keeps WordPress in the background and swaps only the frontend. What it solves, what it does not, and why we go to Sanity instead.
Jamstack Explained: What Still Holds in 2026
Jamstack means prerendered HTML, delivery from a CDN and content pulled through an interface. What still holds in 2026, and where it falls short.
Sanity CMS Review: Why We Use It for B2B Websites
Sanity CMS review from an agency: how Presentation Mode, localization and AI access work, what Sanity costs in 2026 and where its limits are.
Sanity vs Contentful vs Storyblok
Sanity vs Contentful vs Storyblok: pricing, free-tier language caps, editor preview, querying and export compared, plus the rule we use to decide.
Squarespace Alternatives for B2B Websites
Squarespace alternatives for B2B: where the builder runs out, when Webflow is enough and when Astro or Next.js with Sanity is the better call.
TYPO3 Alternatives: Upgrade, Switch or Stay
Looking for TYPO3 alternatives? If you run v11 or v12, free support has ended. When Webflow is enough and when a headless CMS is the better fit.
Migrating from TYPO3 to Next.js
TYPO3 relaunch to Next.js: the process, exporting pages and tt_content, language overlays, redirect maps, 3-6 weeks to launch, cost from 8,000 euros.
Webflow Alternatives: When to Leave, and Where
Webflow alternatives compared: Webflow carries you to about 30 pages and two languages. After that, Sanity with Astro or Next.js costs less.
Webflow vs. Next.js: The Choice for B2B in 2026
Webflow vs. Next.js: when the visual builder is enough and when a code system with Sanity fits B2B. 10 criteria, CMS limits, 2026 costs, our verdict.
Migrate Webflow to Next.js Without Losing Rankings
Webflow to Next.js migration without losing rankings: 6 phases, redirect map, CMS import into Sanity, timeline and cost. How we run the switch in 2026.
Migrate Wix to Next.js: Process and Cost
Migrate Wix to Next.js: why there is no clean export, how a 1:1 redirect map protects your rankings, and what the timeline and the cost look like.
WordPress Alternatives for B2B Companies
WordPress alternatives for B2B: site builders, Webflow, Framer and Sanity compared, with costs, timelines and when staying put is right.
WordPress vs Next.js for B2B in 2026
WordPress vs Next.js: where WordPress still holds up for B2B, where Next.js with Sanity wins. Ten criteria, real costs and a clear recommendation.
WordPress to Next.js: Process, Time and SEO
WordPress to Next.js migration without ranking loss: six phases, a redirect map for every old URL, 3-6 weeks to launch, relaunch from 8,000 euros net.
The 6 best agencies for motion design on the web in 2026
2026 ranking with INSYNC, ROCANI, ASTRAL, Demodern, funkhaus and Double Play: motion built natively in the browser, not embedded video, from 6,000 euros.
SaaS website design: what a software website needs to deliver in 2026
How a SaaS website positions in five seconds, whether product-led or sales-led sets the structure, what pricing, demo and security pages must deliver and what it costs.
Developing an SEO strategy: 7 steps to a roadmap that delivers rankings
How to develop an SEO strategy that is more than a to-do list: 7-step framework, GEO from the start, realistic time and budget ranges, typical mistakes and a roadmap template.
Startup website: MVP or brand website, costs and timing
When a startup needs an MVP website and when a brand website, what investors and first customers want to see, builder or agency, costs from 6,000 € and the right time for a relaunch.
Website animations: which ones build trust and which ones just annoy
Which website animations build trust and conversion, which ones drive visitors away, performance rules, accessibility, tools like GSAP, Lottie and Spline, costs and process.
Website for industrial companies: what buyers and engineers expect in 2026
Why industrial websites often look like 2010, what buyers and engineers really look for, catalog or configurator, hreflang, lead routing, trade fair integration, costs and process.
Website for tax advisors: what a tax firm website needs to deliver in 2026
What clients expect from a tax advisor website, how positioning, DATEV integration and local SEO bring mandates, what applies for privacy and BFSG, and what a firm website costs.
Best SEO agency 2026: the ranking and six questions for the first call
Six SEO agencies ranked for 2026, INSYNC in first place, plus six questions for the first call with the answer you want to hear. With prices where public.
Measuring AI visibility: share of model and citation rate
Google rankings say almost nothing about whether ChatGPT or Perplexity recommend you. Which metrics really capture AI visibility, which tools are worth it, and how to measure it yourself in 5 steps.
Optimizing videos for the web: our ffmpeg pipeline
How to optimize videos for the web without killing load time. Container vs. codec (H.264, VP9, AV1), concrete ffmpeg commands with CRF and faststart, lazy loading, poster, autoplay, accessibility, and self-hosting vs. YouTube. From our real pipeline.
Best GEO agency 2026: the ranking, the methods and how to spot pretenders
Six GEO agencies ranked for 2026: methods, tracking tools and prices per their own sites. Plus five labels that expose GEO pretenders in ten minutes.
What does SEO cost? Prices and models 2026
SEO costs, honestly explained: hourly rate, project, or retainer, market ranges for freelancers, agencies, and in-house, what really drives the price, and what you get with us.
Web development cost: hourly rates, project prices and what drives the price
What does web development cost? Market hourly rates, project ranges from 5,000 to 50,000 €, the five real cost factors and why Next.js or Astro with Sanity is cheaper than WordPress over three years.
Website for law firms: what a law firm website needs in 2026
What clients expect from a law firm website, which elements are mandatory, how local SEO works for lawyers, which mistakes most firms make and what a law firm website costs.
Website relaunch: process, costs, and the 5 most common mistakes
When a website relaunch is due, how it runs in 6 phases, what it costs in the market and with us, which 5 mistakes cost rankings and leads, and which stack is the right choice in 2026.
The 6 best web design agencies in Germany in 2026
2026 ranking with INSYNC, Humans & Machines, Demodern, denkwerk, Moby Digg and ROCANI: five open criteria, facts from their own websites, budget fit.
Meta description: length, examples, and tips
What a meta description is, how long it should be, and how to write one that earns clicks. With before-and-after examples, the most common mistakes, and the truth about why Google rewrites it so often.
SEO audit: what is checked, process, and costs
What an SEO audit really checks, how it runs, which tools are behind it, what it costs, and the checklist for doing it yourself. Including AI readability, which belongs in 2026.
How long does it take to create a website? Realistic timelines
How long does a website take? Timelines by website type from 1 to 12 weeks, what really drives the duration, our 6-phase process and how you as a client speed the project up.
Best web design agencies in the Upper Palatinate 2026: criteria and a fair overview
There is no single "best" web design agency in the Upper Palatinate, only the right one for your project. This article explains the seven criteria a strong agency is measured against and fairly places reputable providers from Weiden, Regensburg, and the surrounding area. Including where INSYNC stands.
Best agency for Next.js, Astro and headless CMS: 2026 ranking
Six agencies for Next.js, Astro and headless CMS, ranked, with stack, references and prices per their sites. A stack table first, four vetting questions after.
Website relaunch: the best agencies of 2026 compared
2026 relaunch ranking with INSYNC, u+i interact, mindshape, comspace, Friendventure and SNK: prices, technology and redirect planning compared.
SaaS websites: the best agencies of 2026 compared
Six agencies for SaaS websites compared: design, stack, SEO and GEO, public pricing. INSYNC in first place, plus Growably, path digital, magier and more.
AI search engines: the most important ones at a glance (2026)
What an AI search engine is, how it works, and which systems matter in 2026. ChatGPT Search, Perplexity, Google AI Overviews and AI Mode, Gemini, Copilot, and Claude compared, including index, limits, and what it means for your company.
Landing page cost: what a landing page really costs in 2026
What does a landing page cost? Market ranges from builder to agency, the real cost drivers, our pricing from 5,000 € and an ROI calculation that shows when the price pays off.
Building backlinks: the honest guide
What backlinks are, whether they still matter in 2026, and how to build high-quality links without buying them. White-hat methods, dofollow vs. nofollow, an honest look at grey-hat risks, and why authority also earns AI citations.
Best Webflow agency Germany 2026: the criteria and a fair overview
There is no single "best" Webflow agency, only the right one for your project. This article explains the seven criteria of a strong Webflow agency, the 2026 partner status, realistic prices, and places reputable German providers neutrally. INSYNC is one of them.
Startup websites: the best agencies in 2026 and what each stage needs
Five agencies for startup websites compared, INSYNC in first place. Plus: which site you need at pre-seed, seed and Series A, and what it costs.
Best landing page agency 2026: ranking and selection criteria
2026 ranking with INSYNC, konversionsKRAFT, path digital, ConversionBoosting, Growably and Designbase: build or testing, methods, locations, prices.
What is a landing page? Definition, structure, examples
A landing page is a single page with exactly one goal: a conversion. What a landing page is, how it differs from a homepage and a website, what types exist, what a good one consists of, and when it pays off.
Industrial Websites: The Best Agencies for Machine Builders and the Mittelstand
Six agencies for industrial websites, ranked: INSYNC, NEW.EGO, wob, zuk., Moby Digg and Schindler Parent, with the right fit per project type and pricing.
Who builds your website? Providers and prices compared in 2026
Builders from 9 euros a month, freelancers from 90 euros an hour, agencies from 6,000 euros: 13 providers with prices from their own sites.
Writing SEO texts: the guide for 2026
A good SEO text ranks on Google and gets cited by AI because it is written for search intent and for people, not for a keyword counter. Search intent, keyword placement, structure, the keyword density myth, readability, length, the five-step process, and the honest truth about AI texts.
Law Firm Websites: The Best Agencies of 2026 Compared
The 5 best agencies for law firm websites in 2026 compared: focus, tech, references and prices per their own sites, plus 4 criteria for choosing.
3D Website: how 3D on the web works and when it pays off
Real 3D in the browser with WebGL, WebGPU, three.js, and Spline. How the tech works, what you build it with, what it costs, when 3D really pays off, and what it costs in performance. From a team that builds these sites.
Best B2B web design agency 2026: the 7 criteria for B2B websites and a fair overview
There is no single "best" agency, only the right one for your goal. This article explains the seven criteria a good B2B web design agency is measured against, gives a decision aid by goal and budget, and places reputable German providers neutrally. INSYNC is one of the strong options.
Local SEO: simply explained
How your business shows up at the top of local searches and in Google Maps. What local SEO is, how the local pack works, which levers really matter (business profile, NAP, reviews, schema), and how you become visible systematically. With a clear B2B focus.
Tax advisor websites: the best agencies in 2026 and the DATEV comparison
Five agencies for tax advisor websites ranked for 2026, INSYNC in first place, plus the comparison with the DATEV packages Basis, Compact and Premium.
Webflow vs. Framer: which tool for which website
Framer is strong on design, animation, and speed. Webflow is stronger on complex CMS, e-commerce, and scaling. The honest practitioner comparison of when each tool is the better choice, with current 2026 data.
The best web design agencies in Nuremberg 2026: the ranking
Six web design agencies for Nuremberg, ranked, with focus, stack and pricing per their own websites. INSYNC in first place, with reasons and a clear boundary.
Answer Engine Optimization (AEO): simply explained
What Answer Engine Optimization is and how to make your content visible in featured snippets, People Also Ask, voice, and AI answers from ChatGPT, Perplexity, and Google. AEO vs. SEO vs. GEO, the biggest levers, the right metrics, and an honest reality check.
Building a website with AI: what actually works in 2026
AI builders spin up a first page in minutes. The best 2026 tools in an honest check: Wix ADI, Framer AI, Hostinger, 10Web, Bolt.new, and Lovable, with a step-by-step guide, clear limits (design, SEO, scaling, GDPR), and the question of when a builder is enough and when an agency is needed.
LLM SEO (LLMO): how ChatGPT and others cite you
LLM SEO, usually called LLMO, is optimizing so that language models like ChatGPT, Gemini, and Claude cite your content. How LLMs pick sources, what role Bing plays, the JavaScript catch, and how to write answer-first.
The best web design agencies in Regensburg 2026
Six web design agencies in Regensburg, ranked and explained. INSYNC in first place, plus stack, location and pricing as stated on each website.
Wix vs. Webflow: the honest comparison
Wix, Wix Studio or Webflow? What sets them apart, where Webflow wins on design, SEO and scaling, and what Wix Studio's uncertain future means for your platform choice.
Optimizing a landing page: the checklist
Optimizing a landing page means starting with the data, securing message match, getting clear above the fold, taking friction out of forms, and validating with A/B tests instead of guessing. The practical checklist for more B2B leads, with 2026 benchmarks.
Technical SEO: the practical guide
Technical SEO makes sure search engines and AI systems find, read, and understand your website. All core areas from crawlability through Core Web Vitals, status codes, and hreflang to SSR, the right tools, and why it gets more important in the AI era, not less.
Corporate website: what it is and what it has to deliver
What a corporate website is, how it differs from a landing page, shop, and blog, what it is for in B2B, which building blocks it needs, what the BFSG requires in 2026, and what separates a good company website from a generic one.
Keyword research: the process in 6 steps
How to do keyword research that actually brings customers. The full process from seed keywords through search intent to clustering, with the right tools, the long-tail advantage, and research for AI search.
Conversion optimization: the honest guide
What conversion optimization really is: calculating conversion rate, honest benchmarks, the key levers, the most common conversion killers, and the systematic CRO process. With a clear B2B focus.
Core Web Vitals simply explained: LCP, INP, CLS
Core Web Vitals are Google’s metrics for loading experience, interactivity, and visual stability of your website. What LCP, INP, and CLS mean, which thresholds apply in 2026, how you measure them via field and lab data, improve them per metric, and how important they really are for ranking.
OnPage SEO: the key elements explained
What on-page SEO is, which elements really matter, and how to optimize your pages step by step. From content to title tag and meta description to internal linking, clearly separated from technical SEO, plus a checklist.
Webflow vs WordPress: The Honest Comparison
Webflow vs WordPress compared: how each is built, upkeep, security, SEO, content and real cost. Plus the third option when neither one fits your needs.
Improve your Google ranking: the key levers in 2026
The overarching practical roadmap: the real ranking factors, the five levers in the right order (search intent, technical, content, internal links, backlinks), the most common mistakes, what AI search changes in 2026, and how long it realistically takes.
Web design cost 2026: what a website really costs
What web design really costs in 2026: honest market ranges by route and scope, hourly rates, the real price factors, running costs, funding, and how to spot a fair quote. Value over price, no sugarcoating.
Generative Engine Optimization (GEO): simply explained
How your brand shows up in AI answers from ChatGPT, Perplexity, and Google. What GEO is, how it works, how it differs from SEO, and where it starts at the build.
Agency, builder, or freelancer: who should build your website?
Four paths to your own website, with very different outcomes. An honest comparison of DIY, builder, freelancer, and agency by cost, quality, and risk, plus a clear decision guide and the most common cost traps.
SEO vs. GEO: How your website shows up in AI answers.
SEO vs. GEO in direct comparison: what sets them apart, what they share, when you need which, and how to think both together. Honestly explained: GEO does not replace SEO, it builds on it. With a comparison table and current figures.
Website builder, Webflow or Next.js/Astro: which website stack fits your business
Which website stack fits your business: builder, Webflow, or Next.js/Astro with Sanity? Decision matrix for non-tech leaders, 2026 costs, 4 questions.
Making-of FRAMEN: An enterprise website, rebuilt.
A platform with 30,000+ locations, two completely different audiences, video-heavy design - and a green PageSpeed in the end. How we rebuilt FRAMEN’s website from the ground up.
Accessible website: what the BFSG means for companies.
Since 28 June 2025, digital accessibility under the BFSG is mandatory for many companies. Who is affected, the micro-enterprise exemption, what WCAG 2.1 AA concretely means, a checklist, fines, and why overlay tools do not solve the problem. As orientation, not legal advice.
ChatGPT SEO: how your company shows up in ChatGPT answers
More and more customers ask ChatGPT instead of Google. This guide shows step by step how your website gets cited and recommended in ChatGPT: Bing index, allowing GPTBot, server-side rendering, answer-first content, and authority beyond your own site.
Website relaunch without SEO loss: The checklist.
A relaunch can cost your rankings, but it does not have to. The complete SEO-safe process: from inventory and redirect mapping through 301 redirects and staging to monitoring and checklist. Plus: why the relaunch is even an opportunity.
What does a B2B website really cost?
„It depends" is not an answer. An honest orientation for B2B websites: prices from around 8,000 €, why B2B as a sales asset costs more, the real cost drivers, ongoing costs, and when the investment pays off.
Code tutorial - how to build a scroll-to-action sequence like Apple’s.
Frames instead of video, canvas rendering, scroll binding: step by step to an Apple-style scroll sequence - with code and our Deliver Films project as reference.
Why minimalism builds trust on the web.
Clarity decides whether a website works. Why reduced, consistent design builds trust almost automatically - and why “beautiful” alone isn’t enough.
INSYNC Experimental: scroll 3D animations on WIX Studio - is it possible?
A Spline-based scroll 3D experience on Wix Studio - despite missing scroll tracking. Over 2,000 lines of custom code, a postMessage bridge, and GSAP interpolation.
Funnel thinking in web design - inside conversion structures.
How to think and structure a website along the marketing funnel: awareness, consideration, decision, and care, which page type belongs on which stage, which CTAs fit, and how internal guidance moves visitors toward the inquiry. With a clear B2B focus.
Web design trends 2026: what B2B companies really need.
The web design trends 2026 honestly sorted: accessibility, performance, AI personalization, and machine experience are mandatory, 3D only pays off with ROI, and B2B can safely ignore many visual trends. With clear prioritization.
Press articles
7 articles
Site of the Week.
Wix Studio names the new Interactive Studio website Site of the Week - recognition straight from the platform itself.
FRAMEN goes live: New web presence with INSYNC.
We rebuilt the website of FRAMEN - the digital signage platform from the Axel Springer group - from scratch. A presence that convinces two audiences at once.
N'NINKIE: pro bono for Africa's changemakers.
We built N'NINKIE's website pro bono. A platform that makes local changemakers across Sub-Saharan Africa visible.
INSYNC opens a new department for vector-based animation flows.
With Rive, we close the gap between Lottie and high-end 3D: vector-based, browser-optimized animations - premiering in the Reachoria project.
What it’s like to sit on the same team as a designer with developers.
“Impossible” meets “challenge accepted”: why the friction between designers and developers produces our best projects.
A look behind the scenes - how we work at INSYNC.
From strategy plan and hero designs to launch: our process step by step - and the role you play as a client.
Silencio - how a website relaunch paved the way to $2.5M in funding.
200,000 visitors and $2.5M in seed funding: how the website relaunch for Silencio Network turned into a growth catalyst for the whole company.
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