SOSEI Blog
Practical writing on AI discoverability, GEO, llms.txt, GDPR compliance, and the moving parts of the 2026 search landscape.
- 6 min readProductAI ModelsQuality
SOSEI Now Runs on Claude Fable 5, Anthropic's Newest Frontier Model
Best-quality rebuilds now run on Claude Fable 5 — Anthropic's new model tier above Opus — across the design system, art direction, page copy, the chat editor, and translations. What changes, what stays the same, and why SOSEI customers get frontier-model upgrades without lifting a finger.
- 8 min readSEOGEOAEO
Search Landscape, June 2026: The May Core Update and the Rise of AI Mode
Google's May 2026 core update finished rolling out, AI Mode crossed a billion users on a new default model, and AI Overviews now cover roughly half of searches. What actually shipped — and what it means for SEO, GEO, and AEO.
- 8 min readAI DiscoverabilityGEOAEO
The Zero-Click Playbook: How to Stay Visible When AI Answers for You
Roughly 65% of Google searches now end without a click, and AI Overview queries push that past 80%. That's not lost traffic — it's a shift in where visibility happens. Seven concrete moves to be the answer, and the source it's credited to.
- 7 min readAI DiscoverabilityGEOrobots.txt
AI Crawlers in 2026: The 18 Bots Your Website Should Welcome
GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and fifteen more. A field guide to the AI crawlers that decide whether your site shows up in generative answers — and the robots.txt that lets them in.
- 7 min readLegalGDPRCompliance
Auto-Generated Legal Pages: What's in Them, What's Not
Every SOSEI rebuild ships with privacy policy, terms of service, cookie policy, impressum, accessibility statement, and a 404 — generated from real site data, not boilerplate. What that includes, what it doesn't, and when you still need a lawyer.
- 6 min readAnalyticsTrackingGDPR
Analytics That Survive a Website Rebuild
Most rebuilds quietly break Google Analytics, Meta Pixel, GTM, Hotjar, and LinkedIn Insight — and the owner notices six weeks later when the numbers look wrong. How SOSEI preserves every tracker, gates them behind consent, and avoids the silent-zero data outage.
- 7 min readHostingDNSTLS
Custom Domains with Automatic TLS: How SOSEI Ships Your Site at example.com
From your-site.sosei.site to www.example.com without buying hosting, paying for a TLS cert, or learning anything about DNS. The Cloudflare for SaaS pipeline that gets your custom domain live and HTTPS-secured in minutes.
- 7 min readStrategySubscriptionMaintenance
Always Current: Why a Subscription Beats a One-Time Rebuild
Websites don't age well. Google algorithms shift, AI crawlers evolve, GDPR rules tighten, design language moves on, and your site quietly stops working. The subscription model exists because no one-time rebuild can keep up with that.
- 8 min readWeb DesignUXConversion
Modern Web Design Principles in 2026: What Actually Converts
Eight design patterns that separate websites built in 2026 from those still stuck in 2018 — generous whitespace, type-led hierarchy, restrained motion, and the layouts that earn clicks instead of begging for them.
- 9 min readConversionWeb DesignUX
Anatomy of a Conversion-Optimized Website
The eleven sections every high-converting marketing page needs, the order they belong in, and the specific job each one does — illustrated section by section.
- 7 min readMobileWeb DesignUX
Mobile-First Isn't Optional: How 60% of Your Traffic Sees Your Site
Most pre-2020 websites still treat mobile as a shrunken desktop. In 2026 — when the majority of visitors arrive on a phone — that is no longer a design opinion. It's a revenue problem.
- 8 min readPerformanceWeb VitalsWeb Design
Sub-2-Second Page Loads: A 2026 Performance Playbook
Largest Contentful Paint under 2 seconds is the bar for credible websites in 2026 — and the playbook is now well-defined. Self-hosted assets, modern image formats, no JS bloat, and HTML the browser can paint immediately.
- 8 min readAccessibilityWCAGCompliance
WCAG 2.1 AA: The Accessibility Standard Every Modern Website Must Meet
The European Accessibility Act enforces WCAG 2.1 AA across the EU. Below is the practical checklist — colour contrast, keyboard navigation, semantic HTML, ARIA — that turns the legal text into something a small team can actually ship.
- 7 min readBrandDesign SystemWeb Design
Preserving Your Brand During a Full Website Rebuild
A modern rebuild should make your site look like itself, only sharper. How SOSEI extracts colours, logo, typography, and voice from the source site and threads them through every layer of the new build.
- 9 min readPipelineAIArchitecture
How SOSEI Rebuilds a Website in Under Three Minutes
From a single domain to a hosted, multi-page, GDPR-compliant, AI-discoverable site — the five-stage pipeline that turns a URL into a modern build, and the engineering choices that make it reliable.
- 6 min readGEOAI DiscoverabilitySEO
What is GEO (Generative Engine Optimization)? A 2026 Guide
GEO is SEO for the LLM era. The signals AI engines use to decide which sites to crawl, parse, and cite — and the concrete steps to be one of them.
- 5 min readGEOllms.txtAI Discoverability
llms.txt Explained: What AI Crawlers Actually Read on Your Site
A markdown file at the root of your site decides whether ChatGPT, Claude, and Perplexity summarize you correctly. Here's what llms.txt is, what to put in it, and the common mistakes that make it useless.
- 7 min readSEOGEOAEO
SEO vs GEO vs AEO: The 2026 Guide to Being Found and Cited
Three different optimization disciplines, three different consumers. SEO ranks pages, GEO grounds AI answers, AEO gets you quoted. The signals overlap but don't substitute — here's the practical breakdown.
- 7 min readGDPRComplianceCookies
GDPR Cookie Banner Requirements in 2026: What's Compliant, What Isn't
GDPR cookie banners are not optional, the rules tightened again in 2025, and most banners shipped before 2024 are now non-compliant. Concrete requirements, common violations, and the 2026 fines pipeline.
- 4 min readSEOGEOllms.txt
Sitemap.xml vs llms.txt: Do You Need Both?
Both files sit at the root of your site. Both are about discovery. They are not redundant — they target different consumers and they fail in different ways. Yes, you need both.
- 5 min readGDPRPerformanceCompliance
Self-Hosted Fonts and GDPR: Why Google Fonts Is a Liability in 2026
A 2022 German court ruling made loading Google Fonts from fonts.googleapis.com a billable GDPR violation. The fix is one afternoon of work — and your site gets faster as a side effect.
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