GrowSurf vs DKIMValidator.com

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GrowSurf compared with DKIMValidator.com
Detail	GrowSurf	DKIMValidator.com
What it does	Referral program software that turns your customers into your lowest-cost growth channel	DKIM, SPF, SpamAssassin Email Validator
Stage	Established	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	subscription	free
Pricing	Referral programs: Startup plan $125/mo billed yearly (or $179/mo monthly) for up to 2,500 participants; Business plan $314/mo billed yearly (or $449/mo monthly) for up to 10,000 participants. Affiliate programs: Free plan at $0/mo plus 3% success fee on referral revenue. All plans include 14-day fr	Not given
Key features	Automatic link generator Copy and paste integration Fast setup time Fully white-labeled AI-powered optimization Automatic rewards Flexible reward types REST API and SDKs Analytics dashboard	Validate DKIM configuration Check SPF validity Measure SpamAssassin score DNS record lookups from authoritative servers Retest without resending messages
What makes it different	Launch in days, not weeks without heavy engineering Pricing based on participants, not total user base Trusted by healthcare, fintech, and software teams 312% average return on investment	Tests show the same headers recipients will see Minimizes DNS caching delays during testing Keep current SpamAssassin rules with daily updates
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	74 no change since last check	67 no change since last check
Trust Flow (Majestic)	27	39
Citation Flow (Majestic)	35	37
Referring domains (Majestic)	1525	720

4 details filled in for both companies.

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