Spam Activity: Key Statistics
Quarter over Quarter comparison: March 1,2024 - May 31,2024

Each reporting period, we analyze domain names reported for spam. We collect spam reports from three reputation blocklists (Spamhaus, SURBL, Invaluement). We eliminate duplicates and enhance these reports with other metadata — domain and IP address registration data, ICANN registry and registrar monthly reports, routing data, attack type, and other indicators — to create spam records. We use the spam records to measure and report key statistics for each reporting period.

A comparison of key statistics for the periods December 1, 2023 - February 29, 2024 and March 1,2024 - May 31,2024 appears in the table below.

Measurement December to February 2024 March to May 2024 Change
in
Measurement
Total number of spam reports collected from feeds (per quarter) 1,559,299 2,406,448 847,149
Total number of spam records produced from spam reports 1,358,366 1,736,927 378,561
Unique domain names reported for hosting spammed content or spambots 649,472 1,554,050 904,578
Top-level Domains (TLDs) with domain names reported for hosting spammed content or spambots 631 702 71
Registrars (by distinct IANA ID) that had gTLD domains under management reported for hosting spammed content or spambots 2,219 2,394 175
Registrars (by distinct name) that had domains under management reported for hosting spammed content or spambots 3,052 3,251 199
Hosting Networks (ASNs) where we observed hosted spammed content or spambots 3,545 3,898 353
Number of subdomain reseller accounts reported for hosting spammed content 478,217 165,309 -312,908

Quarterly Update:
Key Statistics
Quarter over Quarter:
Key Statistics		 Quarter over Quarter:
Top Level Domains		 Quarter over Quarter:
Registrars		 Quarter over Quarter:
Hosting Networks