YOUR DOMAIN · GMAIL TRAFFIC EVIDENCE
Email Deliverability Audit
Review supported Gmail traffic signals and sender-compliance findings for a domain you can access in Google Postmaster Tools.
Private visitor connection · Read-only · No email sent
Google Postmaster setup required
This preview is public, but live Gmail reports are not connected yet. The administrator must configure a Google OAuth client and the required access setup. Visitors can then authorize their own account.
No paid connector is bundled. No sending-domain data has been checked on this page.
Three views of sending evidence
Traffic signals
Daily spam, SPF, DKIM, DMARC and inbound TLS rates when Google returns them. No missing-data guesses or unweighted averages.
Delivery errors
Reported error rates and low-reputation rejection signals. These are not domain/IP reputation ratings or inbox-placement percentages.
Current compliance
Google's current requirements and verdicts, with parent-domain and subdomain findings kept separate.
Need a public DNS check instead?
The SPF, DKIM & DMARC Checker reviews authentication records without a Google connection. This tool adds private traffic evidence; it does not replace or repeat that checker.
No email is sent, no SMTP service is probed, and no DNS record is changed. Results are not a universal deliverability verdict or guarantee.
Questions
Can I check any domain anonymously?
The existing SPF/DKIM/DMARC checker reviews public DNS without connecting Google. This deliverability tool instead reads private Gmail traffic evidence and needs a signed-in visitor with Google Postmaster access to the entered domain. It does not collect competitor data.
What will the report show?
Up to 14 inclusive dates of supported spam, authentication, TLS and delivery-error rates, plus separately labeled current Google compliance findings. Low-reputation rejection rates are not domain or IP reputation ratings. Missing metrics remain unknown.
Does a result prove inbox placement?
No. It does not test inbox placement across mailbox providers, inspect message content, query blocklists, send seed emails or diagnose a specific recipient. A zero reported error rate is not a guarantee.
What needs administrator setup?
A Google Cloud project with the Postmaster Tools API enabled, a web OAuth client, consent-screen configuration and any verification required for public visitors. No paid aggregator is bundled. Confirm current quotas and project requirements before enabling it.
What is stored?
An encrypted connection token tied to your website user and current login session for at most one hour. Reports are held in the current page, not a report-history database. No refresh token is retained. Disconnect clears the local token; revoke the app separately in your Google account if needed. Downloads contain private domain traffic evidence.
Why type a domain instead of selecting from a list?
Listing domains uses broader Google permissions. This tool asks only for Postmaster traffic read access; Google decides whether your connected account may read the domain you enter.
Sources: Google Postmaster metric reference · Compliance reference.