# Vantle

> Independent full-stack design and development studio. Web apps, SaaS products, APIs, databases, payments and AI features, designed and engineered by the same person, for a fixed quote.
> Also a fixed-price custom landing page: $490, 5 working days, two rounds of changes, no calls or meetings. Launch price.

## The Offer

- **Full-stack products by fixed quote**: frontend, backend, PostgreSQL/Supabase data models, APIs, auth, payments (Stripe and others), transactional email, deployment. TypeScript end to end. Scope, price and timeline agreed in writing before work starts.
- **Custom landing page**: designed and coded for the client, responsive, basic SEO and share image, the code handed over. Fixed price, 5 working days from payment.
- **Process**: the client sends a short order form, the studio confirms within one business day and sends bank-transfer details, work starts when payment arrives. Everything happens in writing.
- **Included at no extra charge, on request**: brand identity and copywriting.
- **Not included**: a logo, extra pages, CMS, accounts, payments, databases, domain and hosting costs.

## Own Products & Live Work

- [LIMEN](https://vantle.studio/work/limen): Concept launch page for a black-and-white mechanical watch that only runs while you scroll. Procedural Three.js watch, one unbroken camera take, synthesised sound, zero photos or 3D files.
- [Curtly](https://curtly.dev): LLM streaming gateway reducing input prompt size by 58.2% on average with under 2 ms added latency. Compatible with OpenAI and Anthropic endpoints.
- [Draftify](https://draftify.site): AI coding workspace without message caps or cooldowns. Unified API routing across Anthropic, OpenAI, and Google models from €0.20 per million tokens.
- [VOLT Arc](https://vantle.studio/work/volt): Open-source MIT electric superbike launch page with procedural Three.js motor exploded view and zero external requests.

## Studio Details

- **Clients**: Worldwide (Europe, North America, global)
- **Contact**: hello@vantle.studio
- **Website**: https://vantle.studio

## Documentation & Machine-Readable Endpoints

- [Full LLM Context](https://vantle.studio/llms-full.txt): Complete studio documentation, architecture specs, case studies, and FAQ.
- [XML Sitemap](https://vantle.studio/sitemap.xml): Index of all canonical URLs and image assets.
- [Security Disclosure](https://vantle.studio/.well-known/security.txt): RFC 9116 security policy and contact information.
- [Humans](https://vantle.studio/humans.txt): Team and technology standards manifest.

## Pages

- [Home](https://vantle.studio/): The studio, the offer, selected work, process, what the $490 page includes, FAQ and the order form.
- [UX & UI Playbook](https://vantle.studio/playbook/ux-ui): A 25-chapter open library on landing page UX, cognitive psychology, and conversion design.
- [Brand basics](https://vantle.studio/brand): The Vantle wordmark, colours, typeface and voice.
- [Privacy Policy](https://vantle.studio/privacy): How personal data from the order form is processed (GDPR).
- [Terms of Use](https://vantle.studio/terms): Terms for the website and for landing-page orders.

## UX & UI Playbook

The UX & UI Playbook (https://vantle.studio/playbook/ux-ui) is a 25-chapter open reference on landing page UX, cognitive psychology, and conversion architecture:
- **First Screen & Visual Fluency**: 50 ms visual judgment, hero section anatomy, conversion copywriting, typography as quality, palette psychology, non-stock photography.
- **Trust & Credibility**: Processing fluency, social proof architecture, small-business trust signals, showing your work through case studies.
- **Structure & Layout**: Section ordering (problem, offer, proof, process, price, ask), whitespace hierarchy, navigation decisions, mobile thumb-reach ergonomics, purposeful UI motion.
- **Conversion & Decisions**: Call-to-action placement and weight, high-converting lead forms, pricing psychology & anchoring, honest urgency vs fake countdowns, thank-you flow optimization.
- **Speed & Verification**: Doherty threshold (400 ms rule), Core Web Vitals (LCP, INP, CLS), accessibility as conversion, 10-minute landing page audit checklist.


## Vantle Playbooks

- [Choose a playbook](https://vantle.studio/playbook): The library selection page.
- [UX & UI Playbook](https://vantle.studio/playbook/ux-ui): 25 chapters on landing page design, trust and conversion.
- [SEO & GEO & AEO Playbook](https://vantle.studio/playbook/seo-geo-aeo): 21 detailed guides with diagrams, worked examples, checklists and numbered primary sources.
- [Start with the search, not the keyword](https://vantle.studio/playbook/seo-geo-aeo/search-intent): Match each page to the job behind a query, and give every page one clear reason to exist.
- [Build a keyword map from customer questions](https://vantle.studio/playbook/seo-geo-aeo/keyword-research): Turn enquiries, search data and keyword ideas into a prioritized set of useful pages, with a brief for each.
- [Make the page easy to reach](https://vantle.studio/playbook/seo-geo-aeo/crawl-and-index): Crawling, indexing and canonical URLs: check the chain from URL to search result before rewriting the content.
- [Write titles and links people can use](https://vantle.studio/playbook/seo-geo-aeo/titles-and-links): Make the promise in the search result match the page, then connect the next useful answer.
- [Connect the library around real decisions](https://vantle.studio/playbook/seo-geo-aeo/topical-architecture): Plan topic hubs, contextual links and clear ownership so every useful page has a place and a route to the next answer.
- [Make JavaScript pages work as documents](https://vantle.studio/playbook/seo-geo-aeo/javascript-seo): Check initial HTML, rendered content, routing and error responses so a polished interface still exposes a useful page.
- [Make the discovered page worth opening](https://vantle.studio/playbook/seo-geo-aeo/page-experience): Use performance, mobile usability and stable layouts to protect the visit you worked to earn.
- [Put the answer where the question is](https://vantle.studio/playbook/seo-geo-aeo/answer-first-content): Write a direct answer, keep the conditions beside it and make the explanation easy to follow.
- [Write a brief that produces a useful answer](https://vantle.studio/playbook/seo-geo-aeo/content-briefs): Turn a topic into a clear assignment with a reader, an evidence plan, an outline and acceptance checks.
- [Build comparisons that help someone choose](https://vantle.studio/playbook/seo-geo-aeo/comparison-pages): Use shared criteria, explicit assumptions and honest tradeoffs to turn a comparison into a useful decision tool.
- [Answer the questions that stop the next step](https://vantle.studio/playbook/seo-geo-aeo/faq-and-objections): Use real objections to build useful FAQs, place answers at the decision point and avoid repeating the article.
- [Use structured data to describe reality](https://vantle.studio/playbook/seo-geo-aeo/structured-data): Choose accurate markup, connect the page to its publisher and validate what you ship.
- [Make useful answers, not snippet bait](https://vantle.studio/playbook/seo-geo-aeo/featured-snippets): Format definitions, processes and comparisons clearly without treating a search feature as a promise.
- [Make claims and authorship easy to check](https://vantle.studio/playbook/seo-geo-aeo/evidence-and-authorship): Build a source trail, describe the method and show who is responsible for the advice.
- [Give AI answers something worth citing](https://vantle.studio/playbook/seo-geo-aeo/ai-citations): Publish specific evidence and useful expertise that another answer can point back to, and know how strong the evidence for each tactic really is.
- [Make the business behind the pages unambiguous](https://vantle.studio/playbook/seo-geo-aeo/brand-consistency): Keep your name, offer, profiles and organization metadata consistent so readers and machines can verify who they are dealing with.
- [Make each explanation useful on its own](https://vantle.studio/playbook/seo-geo-aeo/retrieval-ready-pages): Keep names, units, conditions and evidence inside coherent sections so an extracted answer keeps its meaning, without chopping your page into fragments.
- [Separate AI search access from training](https://vantle.studio/playbook/seo-geo-aeo/ai-crawler-controls): Understand what each crawler is for, then decide per service before you change robots.txt or your hosting rules.
- [Audit AI citations with a repeatable method](https://vantle.studio/playbook/seo-geo-aeo/citation-audits): Build a fixed question set, preserve the observation context, repeat each run and separate citations from mentions and referrals.
- [Measure discovery all the way to the enquiry](https://vantle.studio/playbook/seo-geo-aeo/measure-search-and-ai): Separate visibility, citations, visits and business outcomes so each number answers a useful question.
- [Turn the playbook into a 90-day working plan](https://vantle.studio/playbook/seo-geo-aeo/90-day-roadmap): Sequence technical access, useful answers, original evidence and measurement into one realistic improvement cycle.