Case studies · notes from the workshop

How I design websites people actually use.

Every website I build starts with one question: what is the visitor worried about? These case studies walk through real builds step by step, with screenshots and the human psychology behind each decision, in plain words.

Case studies

Tells interview practice: a skeleton over a seated person, the read Relaxed and open, and tips beside it
Free tool

Practise your body language before it counts, free and private

How to use Tells: live tips on eye contact, posture and nervous habits for interviews, presentations and video calls, a summary after each run, in English, Bengali and Hindi.

9 min read · 27 October 2026
Halden House homepage: Slow mornings, by design, over a waterside house at dawn, with a booking bar
Hotel website

Hotel website design: the psychology behind more direct bookings

How I designed Halden House, a boutique hotel website: a priced calendar, all-in totals for three markets, three-step booking and the psychology behind each step.

17 min read · 25 October 2026
A smiling shop owner holds his phone beside a giant green chat bubble shaped like a clock, half open and half locked
WhatsApp Business

WhatsApp marketing vs utility templates and the 24-hour window, explained

What you can send on WhatsApp, when, and what it costs after Meta’s October 2026 pricing changes, in plain words.

8 min read · 25 October 2026
A shop owner with a megaphone faces a crowd of puzzled people, while only two people holding shopping bags glow softly
Meta ads

Meta Conversions API explained: better leads, not just more leads

How the Conversions API teaches your ads which leads actually buy, the full flow, and three ways to connect it.

7 min read · 25 October 2026
Two travellers on a railway platform: one points ahead to show the other exactly where to go
AI lead qualification

Why sorting real leads from the crowd is harder than it looks

Why picking genuine buyers by hand is mentally draining, what it costs, and how an AI agent qualifies every lead instantly and consistently.

7 min read · 20 October 2026
Split image: on the left a man lost in fog among scattered papers and sticky notes; on the right the same man calm on a hilltop at sunrise looking over a clear landscape
Sales dashboard

Why a personal sales dashboard beats manual analysis

Why spreadsheets are slow, late and error-prone, what a personal sales dashboard should show, and how live numbers change your decisions.

5 min read · 20 October 2026
A tired business owner at a desk late at night juggling several phones and a laptop while message bubbles drift out of the open window unnoticed
Lead automation

Why replying to every lead manually is costing you sales

Why answering every enquiry yourself breaks down as you grow, what it quietly costs in revenue and hours, and what to automate instead.

6 min read · 20 October 2026
A woman on a sofa holds her phone and waits hopefully for a reply, while an hourglass on the table runs out and another phone lights up with a message
Lead response

Why replying to a hot lead within 60 seconds matters

What the research says about lead response time, what slow replies cost in lost customers and ad spend, and how to reply in under a minute.

7 min read · 20 October 2026
A man at a shop door checks his watch impatiently while the shop across the street has its door wide open and the owner waves him in
Website speed

What a 4-Second Website Delay Really Costs Your Business

Why a 4-second load time puts your site on Google’s “poor” line, what it does to bounce rates, sales and rankings, and the common fixes.

7 min read · 20 October 2026
A cat photo on the left and the same photo as a pencil sketch on the right
Free tool

Turn any photo into a pencil sketch, free and private

How Graphite works, point by point: an AI model traces the outlines, pencil shading follows the photo’s light, and nothing leaves your device.

4 min read · 18 October 2026
PawFlow overview for a pet clinic: leads from ads, a 7 second average first reply and bookings made by the AI agent
WhatsApp lead automation

WhatsApp lead automation: every ad lead answered in seconds and booked by AI

A walkthrough of PawFlow: Meta ad leads get an instant WhatsApp or LINE reply from approved templates, follow-ups chase quiet leads, and an AI agent answers and books, day or night.

17 min read · 16 October 2026
Axiom Academy homepage: Judge us by the median, not the topper, with a whole-batch result card
Coaching institute website

Coaching institute website design: a psychology-led case study

How I designed Axiom Academy, a website for a JEE and NEET coaching institute: whole-batch results, a free in-page test, real seats left, progress reports, an honest fee and the psychology behind each step.

17 min read · 13 October 2026
Aranya School homepage: a hand-painted illustration of the school gate with yellow buses, drawn instead of children’s photos
School website

School website design: a psychology-led case study

How I designed Aranya, a website for a CBSE school: a day in your child’s class, safety you can check, whole-class results, an all-in fee calculator, a bus finder, real seat counts and the psychology behind each step.

19 min read · 12 October 2026
Tara Iyer creator website: I find the best plate in town, with taped photo cards of street food and travel
Influencer website

Influencer website design: a psychology-led case study

How I designed a website for Tara Iyer, a food and travel creator: a brand and fan switch, audience data with a real-audience check, a package builder, campaign results, a shop and the psychology behind each step.

16 min read · 12 October 2026
Halftone homepage: Every rupee, accounted for, beside a live card with a sample client’s ad spend, revenue and return
Marketing agency website

Marketing agency website design: a psychology-led case study

How I designed Halftone, a website for a performance marketing agency: a budget planner with honest ranges, a free site audit, the Monday report, results with mistakes left in, and the psychology behind each step.

17 min read · 12 October 2026
Banyan Court flat picker: Choose your flat, with a drawing of two apartment towers and floor 13’s flats marked open, on hold or sold
Real estate website

Real estate website design: a psychology-led case study

How I designed Banyan Court, a website for a new apartment project: a flat picker with a sun slider, the all-in price, EMI, construction progress against promised dates, and the psychology behind each step.

20 min read · 11 October 2026
Kestrel Precision Works homepage: Precision parts to your drawing, priced before you ask, with a technical drawing of a pump shaft
Manufacturing website

Manufacturing website design: a psychology-led case study

How I designed Kestrel, a website for a CNC parts manufacturer: an instant estimate, live capacity, a factory tour, inspection reports, landed cost and the psychology behind each step.

18 min read · 11 October 2026
SmartCRM overview for a dental clinic with revenue, open pipeline, new leads and unpaid invoices
CRM for small businesses

Small business CRM with AI: a feature-by-feature walkthrough

A walkthrough of SmartCRM, a CRM for small businesses: pipeline, AI call coach, SMS, WhatsApp and LINE inbox, AI email, invoices and automations, and what each one saves you.

20 min read · 10 October 2026
Wolk pet clinic website homepage with a dog and cat in the hero, a Book Appointment button and a pet name form
Pet clinic & grooming website

Pet clinic & grooming website design: a psychology-led case study

How I designed Wolk, a pet clinic and grooming website: a personalised hero, open prices, WhatsApp booking and the psychology behind every step.

20 min read · 2 October 2026
Archis Dental Clinic homepage: headline Dental care that doesn't hurt, or surprise you, beside a photo of a patient laughing with her dentist
Dental clinic website · 24 pages

Dental clinic website design: the psychology that turns visitors into patients

How I designed Archis, a 24-page dental clinic website built on patient psychology: painless messaging, prices upfront, a symptom picker and 3-step booking.

18 min read · updated 27 October 2026
Junction Toy Works homepage: headline Toys made to be played with for a generation, and a live 3D wooden train on a table
Ecommerce store + mobile app

Toy store ecommerce website design: a psychology-led case study

How I designed Junction, a wooden toy store with live 3D, shop-by-play categories, a free-shipping nudge and the psychology behind each step.

15 min read · 2 October 2026

Want one built around your customers?

Tell me what your customers worry about. I’ll design the site around it.

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I’m Sud, an independent developer. I design and build websites, apps and internal tools for clinics, shops and growing businesses, and I explain every decision in plain words.