Sh_d_n is a free, lightweight website for IP and domain enrichment offered by Shodan. It's optimized for performance and size to focus on just doing one thing: fast lookups for specific resources (IPs and domains). The website is powered by Rust, Axum and the SQLite datasets provided by Shodan Enterprise. We're excited to have reduced the size for most of the pages on this website to less than 10kb, including the CSS stylesheet. If you have the stylesheet cached on the browser then most pages are less than 1 kb!
Sh_d_n is available for free with the caveat that the data isn't as fresh as the regular Shodan API/ website and doesn't include all the banner data that the crawlers collect. The underlying SQLite datasets are normally updated daily but Sh_d_n is only updated once a month. If you want fresher data, an API or access to the underlying datasets for extremely fast IP/ domain enrichment then consider checking out the various Shodan offerings.