Cosmin Tiu
Founder, PROOF48
Cosmin has worked in online marketing and software development since 2018, and has built with AI every day since January 2023. He still writes code from scratch daily, in Python, React, Rust and C#. PROOF48 ships business websites in 48 hours and invoices afterwards, so every opinion on this blog was paid for in real builds, not in theory. He signs every article on this blog.
Builds he shipped
What PROOF48 does
Web design you pay for after you see it.
PROOF48 builds your website before you pay anything.
48 hoursA real website, live in 48 hours.
PROOF48 builds business websites in 48 hours.
AI assistantAn AI that answers your clients. Day and night.
PROOF48 builds AI assistants that work inside your business: a WhatsApp assistant that reads client messages and handles routine requests, a voice assistant that takes calls and books appointments, and a chat widget on your site that qualifies leads and answers questions.
SEOGet found on Google. Stay found.
PROOF48 handles technical SEO, Google Search Console, static sitemaps, schema markup, and AI search visibility.
AutomationAutomate the work that repeats every day.
PROOF48 builds business automation: booking and follow-up flows, WhatsApp and Telegram bots, monthly content pipelines, invoicing and e-Factura handoffs, and monitoring with alerts.
MarketingContent and ads. Made every month. Without you doing the work.
PROOF48 runs content and growth engines for businesses that cannot hire a full marketing team: daily blog posts, 12 AI videos per month, Meta and Google ad management, and monthly content calendars.
Latest articles
AI agent, chatbot or "AI employee": what is actually being sold?
A chatbot answers questions in one channel. An agent is software where the AI model chooses its own steps and uses tools to finish a task.
Read itautomationWhat booking software a salon or spa actually needs to stop double-bookings
To stop double-bookings a salon or spa needs one calendar that every channel books into, with service lengths, staff and rooms modelled, plus automatic reminders. PROOF48 does not sell salon software.
Read itmarketingHow Google Ads actually works for a small local business, in plain language
Google Ads runs an auction every time someone searches. Your bid is the most you will pay for a click, you usually pay less, and ad and landing page quality count alongside the bid.
Read itseoWhy the category you pick on Google Business Profile comes before the description
Pick the primary category that names what the business mainly is, in the most specific term Google's list offers, then add only a few extra ones. Google's help says the categories you select affect your local ranking; the description pages we read make no such claim.
Read itwebsitesWhat a wedding photographer's website actually needs to book the date
A wedding photographer's site needs a gallery that loads fast on a phone, packages with starting prices as text, and an enquiry form that asks for the date and place first. PROOF48 builds a site of up to about five pages in 48 hours, for 500 to 2,500 EUR, and you pay only after the preview.
Read itaiWhat ChatGPT actually replaces for a small business owner, and what it does not
ChatGPT replaces the blank page: first drafts, rewrites, summaries and spreadsheet formulas that you then check. It does not know your prices, does not answer customers at 21:00 on its own, and does not replace a professional's judgment on tax, law or health.
Read it