Case Study: TubeOnAI — DR 23 to 51, 116K Users in Email Automation | Riad Hasan
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Ongoing Engagement · 8+ Months
Cold Email Link Building Inbound Email Influencer Outreach SaaS Growth

DR 23 to 51, 116K Users in Automation &
Full Email Growth Engine Built

ClientTubeOnAI
IndustrySaaS · AI Video Tools
Timeline8+ Months · Ongoing
ServicesCold Email · Link Building · Inbound · Influencer
DR 51

From DR 23 in 6 months

116K

Users in automation funnels

201

Backlink pipeline responses

68

YouTube influencer responses

4

Channels managed simultaneously

The Challenge

A Powerful Tool. Failed Email Attempts. Zero Conversions.

TubeOnAI had built an impressive AI video tool with real potential — but their email marketing had completely failed. They'd tried running campaigns themselves, got poor results, and didn't understand why. They had a growing base of free users but almost no conversion to paid. Brand awareness was low. Organic growth was stalling.

They came to me initially as a consultant. After my audit, the problems were clear: no proper infrastructure, no segmentation strategy, no behavioral automation, and no coherent outreach approach. Everything had to be rebuilt — and this time across four different channels simultaneously.

The scope: Cold email for sales, link building outreach for DR growth, YouTube influencer outreach for brand awareness, and a full inbound email system for free-to-paid conversion. Four channels. Three different email platforms. One strategy.

What started as a consulting engagement grew into an 8-month ongoing part-time role — because the results kept compounding.

The Approach

Four Channels. One Unified Growth Engine.

Rather than running one channel at a time, I built all four in parallel — each feeding into the other. Cold email brought in prospects. Influencer outreach built brand credibility. Link building strengthened SEO authority. Inbound email converted and retained users.

Channel 01
Cold Email — Sales Outreach
Targeted B2B cold email campaigns driving signups and product awareness to key ICP segments.
80%+Open rate on cold campaigns
Channel 02
Link Building Outreach
Quality-first link placements on high-DR SaaS and blog sites, plus a 934-contact outreach campaign building a strong ongoing pipeline.
DR 23→51Domain rating growth in 6 months
Channel 03
YouTube Influencer Outreach
Cold outreach to 1,101 YouTube creators for brand awareness and product feature collaborations.
68Influencer responses secured
Channel 04
Inbound Email System
Full behavioral automation across Fluent CRM, Mautic and SendGrid — 116K+ users in funnels.
116,287Users entered segmentation automation
What I Did

Built From Audit to Full Execution

1
Full Email Audit & Strategy
Started with a comprehensive audit of their existing setup. Identified infrastructure gaps, deliverability issues, and the complete absence of behavioral automation. Built a multi-channel strategy covering all four channels before touching a single campaign.
2
Link Building — DR 23 to 51
Focused on quality over volume — securing live placements on high-DR SaaS and blog sites including ranktracker.com (DR 77), wishup.co (DR 72), readability.com (DR 72), breakcold.com (DR 61) and iemlabs.com (DR 63). Ran parallel outreach to 934 sites via Mystrika, generating 201 responses and a strong pipeline of ongoing link opportunities that continues to drive DR growth.
3
YouTube Influencer Outreach
Built and executed a YouTube influencer outreach campaign targeting 1,101 relevant creators. Achieved 68 responses — a 6.2% reply rate which is strong for cold influencer outreach — with the goal of brand awareness and product feature coverage on YouTube.
4
Inbound Email Infrastructure (3 Platforms)
Built the inbound email system across three platforms — Fluent CRM for automation funnels, Mautic for segmented broadcasts and feature announcements, and SendGrid for high-volume sending. Each platform served a specific purpose in the user lifecycle.
5
User Segmentation Automation
Built a master segmentation automation that processed 116,287 users — tagging and routing them into the right sequences based on behavior, plan type, and activity. 68% overall conversion rate through the segmentation funnel.
6
Free-to-Paid & Promotional Campaigns
Wrote and set up free-to-paid conversion sequences, BFCM campaigns, webinar promotion blasts, feature update announcements and seasonal campaigns. Managed sending at scale — webinar promo alone reached 29,063 users across multiple emails.

The tool stack across this engagement:

Mystrika Fluent CRM Mautic SendGrid Apollo.io Ahrefs Clay
Cold Email Results

1,350 Prospects. 2,467 Opens. 55 Responses. $3,000 Opportunity.

The cold sales outreach campaign targeted 1,350 prospects with a personalized multi-step sequence. Mystrika recorded 2,467 total opens — meaning prospects were opening and re-opening emails, a strong signal of genuine interest. The campaign generated 55 responses and $3,000 in identified sales opportunities.

Open count exceeding the number approached is typical in Mystrika as it tracks every open event per prospect. The key metric here is the 55 responses from 1,350 approached — a 4% reply rate on cold B2B outreach targeting a competitive AI tools market.

TubeOnAI Sales Campaign — Mystrika
TubeOnAI Cold Email Sales Campaign — 1,350 approached, 2,467 opens, 55 responses, $3,000 opportunity
Link Building Results

DR 23 to 51 — Quality Links on High-DR Sites

The link building strategy was quality-first. Rather than chasing volume, I focused on placing links on relevant, high-DR SaaS and blog sites. Every placement in the tracker was manually researched, outreached and followed up — from ranktracker.com (DR 77) to wishup.co (DR 72) to breakcold.com (DR 61).

Beyond the live placements, the outreach campaign of 934 contacts generated 201 responses and a strong pipeline of future opportunities — the DR growth is still continuing as those conversations close.

Link Building Tracker — Live Placements
TubeOnAI Link Building Tracker showing live placements on high-DR SaaS sites
Backlink Outreach Campaign — Mystrika
TubeOnAI Backlink Campaign — 934 approached, 201 responses
Domain Rating — Ahrefs (tubeonai.com)
TubeOnAI Ahrefs DR 51
DR 23→51

Domain rating growth during engagement

201

Outreach responses — active link pipeline

DR 77

Highest DR site with live placement

Influencer Outreach Results

1,101 YouTubers Reached. 68 Responded.

YouTube influencer outreach is notoriously difficult — most creators get hundreds of pitch emails and respond to very few. Reaching out to 1,101 relevant creators and securing 68 responses represents a 6.2% reply rate, which is strong performance for cold influencer outreach in the AI tools space.

Influencer Outreach Campaign — Mystrika
TubeOnAI Influencer Outreach — 1,101 approached, 68 responses
Inbound Email Results

116,287 Users. Three Platforms. One System.

The inbound email operation for TubeOnAI was the most complex I've built — running simultaneously across Fluent CRM, Mautic and SendGrid, with each platform handling a different part of the user lifecycle. The scale was significant: a single webinar promotion reached 29,063 users across multiple send steps.

User Segmentation Automation — 116,287 Users, 68% Conversion Rate
TubeOnAI User Segmentation Automation showing 116,287 users and 68% conversion
New User Flow Automation — Step Report
TubeOnAI New User Flow Automation with 14,888 users
CampaignSentOpen / Read RatePlatform
Webinar Promo — AI Sales Funnel29,06310.89%Fluent CRM
Webinar Promo — Going Live29,04014.74%Fluent CRM
BFCM — Biggest Black Friday Sale5,51529.37%Fluent CRM
Free-to-Paid — More Power Less Price2,86520.98%Fluent CRM
Feature Update — RSS & 15+ Updates9,72520.46%Mautic
Transcribe Feature Launch37581.87%Mautic
BFCM Campaign — Fluent CRM
TubeOnAI BFCM Black Friday Campaign — 5,515 sent, 29.37% open
Webinar Promotion Emails — Fluent CRM
TubeOnAI Webinar Promo Email Campaign Stats
Feature Update Blast — Mautic + SendGrid
TubeOnAI Feature Update Email — 9,725 sent, 20.46% read rate
Free-to-Paid Conversion Sequence — Fluent CRM
TubeOnAI Free to Paid Conversion Campaign
Inbound Email Blast — Mautic + SendGrid Infrastructure
TubeOnAI Inbound Email using Mautic and SendGrid
Key Takeaways

What This Engagement Proved

Running four outreach channels simultaneously creates a compounding effect — each channel reinforces the others. Link building improves SEO which boosts cold email credibility. Influencer coverage drives signups that inbound email then converts.
At scale, segmentation is everything. With 116,287 users in your automation system, sending the wrong message to the wrong segment destroys deliverability and trust. Behavioral triggers and proper tagging determine whether your email system works or fails.
Different platforms serve different purposes. Fluent CRM for lifecycle automation, Mautic for segmented broadcasts, SendGrid for scale — using the right tool for each job is what makes a complex operation like this manageable.
DR growth is a long game but it compounds. Going from DR 23 to 51 in 6 months didn't happen overnight — it was 934 personalised outreach emails, 201 conversations, and consistent execution over months.
The best client relationships grow over time. What started as a consulting audit became an 8-month ongoing engagement because the strategy kept delivering results. Trust is built through execution, not promises.

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