Rahul Biswas, SEO and digital marketing expert in Kolkata
ROriginal series

Rahul
BiswasSEO, AEO & GEO expert and healthcare marketer in Kolkata

98% match for your brand 8 years SEO · AEO · GEO Newtown, Kolkata

A digital marketer who builds the website, ranks it, and runs the ads. $2.1M+ in paid media managed, healthcare marketing specialist, and Google top‑5 rankings within 15 days, guaranteed.

See my work
15‑day ranking guarantee

Websites designed & developed by Rahul 12 titles and more

Skills on the playlist SEO, AEO, GEO, ads & more

Box office: Google Ads & Meta Ads results

Google Ads

$1.4Mbudget managed
2.4×return on ad spend

Meta Ads (Facebook & Instagram)

$773Kbudget managed
2.1×return on ad spend

Beyond Google: brand advertising & traffic in Kolkata T&C apply

Career: season 1

7 episodes, 8 years

  1. 1

    Digital Marketing Team Leader India

    Woncomp Tech Solutions (OPC) Pvt. Ltd.. Led the digital marketing team, planning campaigns and owning delivery across SEO and paid media.

  2. 2

    Digital Marketing Specialist India

    GTECH Web Solutions Pvt. Ltd.. Hands‑on SEO, ads and reporting for a portfolio of client websites.

  3. 3

    Digital Marketing Manager India

    Smith Retail Ventures Pvt. Ltd.. Managed retail brand marketing across search, social and paid channels.

  4. 4

    Digital Marketing Manager India & USA

    Kyptronix LLP. Ran cross‑border campaigns for Indian and US clients.

  5. 5

    Digital Marketing Manager Canada

    Folks Digital. Managed digital marketing for Canadian clients, working remotely.

  6. 6

    Digital Marketing Operations & Lead Generation Manager USA

    Crystal Renovations LLC. Owned lead generation and marketing operations for a US renovation company.

  7. 7

    Founder · season finale Newtown, Kolkata

    WebKitLab Technologies (OPC) Pvt. Ltd.. Built my own agency focused on healthcare marketing solutions: websites, SEO and patient acquisition for clinics and dental practices.

About Rahul Biswas

Portrait of Rahul Biswas, founder of WebKitLab Technologies

Rahul Biswas is an SEO, AEO and GEO expert in Kolkata with 8 years of experience in 360° digital marketing. He has led marketing for companies in India, the USA and Canada, from Woncomp Tech Solutions and Kyptronix to Folks Digital and Crystal Renovations, before founding WebKitLab Technologies (OPC) Pvt. Ltd., a healthcare marketing agency in Newtown.

His work covers on‑page, off‑page and technical SEO, AI SEO, Answer Engine Optimization and Generative Engine Optimization, alongside Google Ads ($1.4M managed, 2.4× ROI) and Meta Ads ($773K managed, 2.1× ROI). He builds PHP websites with vibe coding and prompt engineering, designs ad creatives, and specialises in dental marketing, clinic website development and healthcare marketing in Kolkata.

His signature promise is a 15‑day keyword ranking guarantee: WebKitLab.com itself reached Google’s top 5 within 15 days. This cinematic, streaming‑style portfolio was vibe coded and prompt engineered, and is optimised to rank on Google too.

Frequently asked questions

Who is Rahul Biswas?

Rahul Biswas is a digital marketer based in Newtown, Kolkata with 8 years of experience in SEO, AEO, GEO, Google Ads, Meta Ads and PHP web development. He is the founder of WebKitLab Technologies (OPC) Pvt. Ltd., a healthcare marketing agency.

Can you really rank a keyword on Google in 15 days?

Yes, for keywords assessed as achievable. WebKitLab.com reached the top 5 on Google within 15 days for keywords like “dental marketing in Kolkata” and “healthcare marketing in Kolkata”. Every project starts with a keyword assessment, and the 15‑day guarantee applies to the keywords agreed in that assessment.

What are AEO and GEO?

AEO (Answer Engine Optimization) structures content so it is chosen as the direct answer in featured snippets, voice search and AI answers. GEO (Generative Engine Optimization) helps a brand get cited and recommended by generative AI tools such as ChatGPT, Gemini and Perplexity.

How much ad budget have you managed?

Rahul has managed $1.4M in Google Ads at a 2.4× return and $773K in Meta Ads at a 2.1× return, over $2.1M in paid media in total.

Do you work with clients outside Kolkata?

Yes. Rahul has worked with businesses in India, the USA and Canada, and takes on remote projects worldwide.

Can you advertise my brand offline in Kolkata?

Yes. Rahul can arrange advertising on Kolkata Metro Rail, taxis across Kolkata and hoardings, plus online placements on ChatGPT, Medium and Quora and traffic growth through Reddit. Terms and conditions apply.

How was this portfolio built?

This streaming‑style portfolio was built with vibe coding and prompt engineering. The full prompt and source code are available at the bottom of the page.

Test me.
You won’t be disappointed.

Tell me the keyword you want to own. I’ll tell you how fast we can get there, and back it with a 15‑day ranking guarantee.

  • Based in Newtown, Kolkata. Working with clients in India, USA & Canada
  • 8 years of industry experience
  • Founder, WebKitLab Technologies (OPC) Pvt. Ltd.
  • Metro, taxi, hoarding, ChatGPT, Medium & Quora advertising (T&C apply)

Behind the scenes: the prompt

This portfolio was built with vibe coding and prompt engineering. Here’s the prompt that started it. Copy it, or download the complete source code and make it your own.

Build a single-page personal portfolio for Rahul Biswas, a digital marketer in Newtown, Kolkata, styled like a cinematic streaming app.

Look: near-black background, one deep red accent, Bebas Neue for display type and Manrope for body text. Original branding only.

Structure:
1. On every visit, open with an audience picker, "Choose your storyline": four poster tiles (Business owner, Clinic or hospital, Recruiter or HR, Fellow marketer) with line icons. Picking one reorders the sections and rewrites the hero text for that visitor, plays an original synthesized cinematic sound (Web Audio API, with a sound toggle) and a 3-second title-sequence intro built from the initials "RB".
2. A full-screen hero: name, a "98% match" line, years of experience, location, an "Open for projects" status and two buttons (See my work, About me).
3. Horizontally scrolling rows of title cards: ranking case studies (tall posters), websites built, skills, and advertising channels. Cards preview on hover and open a detail pop-up on click.
4. "Box office": Google Ads ($1.4M, 2.4x ROI) and Meta Ads ($773K, 2.1x ROI) as animated counters.
5. Career as an episode list, ending with his own agency as the season finale.
6. An About section, an FAQ, and a contact form that posts to a PHP mailer.
7. A behind-the-scenes section showing this prompt, with copy and download-source buttons.

Use Rahul’s cut-out photo in the hero and About section, and give every card its own original neon line-art illustration (SVG). Clicking the logo returns to the home page.

Quality: fully responsive, keyboard accessible, fast (no images, CSS-only art), and SEO-ready. All content in static HTML, schema.org ProfilePage, Person, ProfessionalService and FAQPage, Open Graph image, sitemap.xml, robots.txt, llms.txt and a custom 404 page.

Target keywords: streaming style portfolio, cinematic portfolio website, SEO expert in Kolkata, AEO and GEO expert, healthcare marketing in Kolkata.
Download source code

Includes HTML, CSS, JS, PHP contact form, sitemap, robots.txt and schema markup.