SpyOnWeb
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Frequently Asked Questions

Everything you need to know to get started with SpyOnWeb.

What data sources does SpyOnWeb use?
We collect data straight from the domains you look up. We run DNS lookups, download ads.txt and analyse the public HTML to spot Analytics, AdSense and infrastructure fingerprints.
Do I need to install anything or set up a server?
No. SpyOnWeb runs in your browser, with nothing to download or configure. Start looking up domains right away, and if you want to monitor them, sign up free in a minute with no card.
How accurate are the correlations?
Results depend on the signals available. Shared infrastructure or a CDN can create false overlaps. Treat the output as investigative leads and check it against your own sources.
What does the free account include?
When you sign up free you can watch up to 3 domains or codes and get email alerts when the SSL, title or an identifier changes. Basic (€6, 6 monitors) and Pro (€24, 50 monitors) plans are coming soon with more capacity.
How do I keep data fresh?
Every lookup refreshes the domain data on the spot. With a free account, your monitors also check domains on a schedule and update IP history and identifiers so you can track changes over time.