Glossary · SEO & Search
GlockApps
Overview
What GlockApps does
GlockApps measures inbox placement — the share of your emails that actually reach the inbox versus the spam folder or the Promotions tab. It sends your campaign to a hidden list of seed addresses spanning Gmail, Outlook, Yahoo, and other major providers, then reports where each copy landed and why.
Key checks and reports
Beyond placement, GlockApps validates your SPF, DKIM, and DMARC authentication, checks your sending IP and domain against major blocklists, and runs your content through spam filters like SpamAssassin to flag trigger words and formatting issues. Ongoing monitors and DMARC analytics help catch reputation problems before a campaign goes out.
Why it matters for a business
Email you never see bounced is invisible revenue lost. When our team runs email marketing and email deliverability work, tools like GlockApps confirm authentication is set up correctly and that messages actually reach subscribers before a database reactivation or nurture sequence ships — so budget goes to campaigns that land, not to the spam folder.
Where we use it
Related Zen in Tech services
How our team puts GlockApps to work in real projects.
FAQ
GlockApps — common questions
Is GlockApps worth it?
For any business sending regular email campaigns or cold outreach, yes — a single inbox-placement test can reveal that a large share of your mail is going to spam, which no amount of copywriting fixes. Free tests cover occasional checks; paid tiers add continuous monitoring.
GlockApps vs Google Postmaster Tools?
They complement each other. Google Postmaster Tools reports Gmail-only reputation and spam rates from Google's own data, while GlockApps actively tests placement across many providers and checks authentication and blocklists. Deliverability teams typically use both.
How much does GlockApps cost?
GlockApps offers a free tier for a limited number of spam tests, with paid subscriptions that scale by the volume of tests, seed lists, and monitoring you need. Check their site for current pricing, as plans change.
Keep exploring
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