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Compare Zelst vs Backdoor Marketing

Side-by-side comparison of features, pricing, services, ratings and more.

Zelst

Cold Email Outreach Website

Zelst is a highly experienced search marketing agency that helps clients to be seen and get found online. They achieve substantial return on marketing investment through creative and strategic search marketing.

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Backdoor Marketing

Paid Advertising & PPC Website

Backdoor Marketing is a full-service digital marketing agency based in Monterrey, Mexico, specializing in unified ad campaigns across Google, Meta, LinkedIn, and TikTok, combined with SEO and web development. They offer a comprehensive approach to boost online presence and sales for B2B and consumer goods businesses.

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Feature Comparison

Attribute	Zelst	Backdoor Marketing
Category	Cold Email Outreach	Paid Advertising & PPC
Rating
Location	Harrogate, England, United Kingdom	Monterrey, Nuevo Leon, Mexico
Services	SEO PPC Content Marketing Social Media Marketing Email Marketing Data Analytics Marketing Automation Advertising Retargeting and Remarketing Video Marketing Branding Brand Strategy Online Reputation Management Web Development Digital Design	SEO PPC Content Marketing Social Media Marketing Email Marketing Data Analytics Marketing Automation Advertising Retargeting and Remarketing Video Marketing Branding Brand Strategy Online Reputation Management Web Development Digital Design
Industries	B2B Services Ecommerce Fashion Retail Food & Beverages Health & Wellness	B2B Services Consumer Goods Government
Pros	Transparent, consultative approach with a focus on metrics that matter to the client.	High client satisfaction with 4.7 rating and positive reviews Unified ad campaigns across Google, Meta, LinkedIn, TikTok Experienced with complex web development projects Bilingual team serving Mexican and international clients
Cons	Primary geographic focus on UK and US, less suited for companies targeting other	Relatively small team may struggle with high-volume enterprise demands Project budget cap of $5,000 may not suit large-scale campaigns
Website	Visit Site	Visit Site

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Free Plan Available

You shouldn’t have to overpay for cold email tools. With Mystrika, you won’t.

It does cold email warmup, sequences, unified inbox, and AI writing - all in one place. Every other tool that does this charges somewhere between $100 and $500 a month. Mystrika has a free plan. 500 prospects. No expiry. No card.

The people who consistently book meetings from cold email aren’t smarter. They just stopped leaving money on the table.

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