Compare A1 SEO vs Zelst

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

Winner

A1 SEO

Cold Email Outreach Website

A1 SEO is a Glasgow-based marketing agency founded in 2014 that specializes in search engine optimization and digital marketing. It runs no-nonsense SEO campaigns aimed at delivering robust, long-lasting return on investment for local, national, and international businesses.

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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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Feature Comparison

Attribute	A1 SEO	Zelst
Category	Cold Email Outreach	Cold Email Outreach
Rating	Winner +0.5 higher
Location	Glasgow, United Kingdom	Harrogate, England, United Kingdom
Services	SEO Digital Marketing Email Marketing PPC Content Marketing Social Media Marketing Data Analytics Marketing Automation	SEO Digital Marketing Email Marketing PPC Content Marketing Social Media Marketing Data Analytics Marketing Automation
Industries	-	B2B Services Ecommerce Fashion Retail Food & Beverages Health & Wellness
Pros	Other agencies, including Shopify development agency Deft Digital, recommend A1 SEO for post-launch SEO work Clients report page-one rankings for competitive keywords, with one holding position one for over five months A long-term e-commerce client reports year-on-year traffic growth and a large revenue increase Reviewers describe the team as expert, genuine, and willing to help well beyond the agreed scope, often free of charge	Over 15 years of experience with a proven track record of measurable results (196% visibility increase, 28x ROAS). High client satisfaction with a 4.9 rating and consistent positive feedback on communication and effectiveness. Full-service digital marketing covering SEO, paid media, content, and social, allowing integrated campaigns. Transparent, consultative approach with a focus on metrics that matter to the client.
Cons	-	Team size of 10-49 may limit capacity for very large enterprise accounts requiring dedicated large teams. Primary geographic focus on UK and US, less suited for companies targeting other regions.
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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