Public-record summary
From the public records linked to stumbleupon.com we extracted four anchors: country United States, registrar MarkMonitor Inc., age 24.5 yrs, encryption status OK. Everything else builds on those.
In-transit protection
For data moving between the user and stumbleupon.com, the encryption check returned: OK. This is the single most important infrastructural safety check we run.
How long has stumbleupon.com existed?
According to RDAP records, stumbleupon.com was registered around 24.5 years ago through MarkMonitor Inc.. This is a useful signal but should be combined with content review.
Infrastructure provider
Our GeoIP lookup places stumbleupon.com on the Unknown network, geographically in United States. ISP-level reputation matters: established networks tend to act on abuse reports faster.
How we read this profile
For stumbleupon.com, the combined picture (24.5 yrs, SSL OK, United States hosting, MarkMonitor Inc. registration) lands in the "very_safe" band. That is a starting point, not a final verdict.
Final take
Combining all signals, we rate stumbleupon.com at 100/100 (very_safe). Always perform your own due diligence before sharing personal data or money.