webwikis.es is a Spanish-language web directory that's currently offline for a complete rebuild. The site is run by a German agency called bo mediaconsult, and the owner, Olav Brunssen, is named along with a full address and tax ID. That level of transparency is a positive sign — most scam sites hide who they are.
However, for a directory that will eventually list businesses and likely offer paid listings or SEO services, the absence of a privacy policy and terms of service is a real gap. Legitimate commercial directories in Europe almost always have these pages. Since the site is in maintenance mode, it's not processing anything right now, so there's no immediate danger. But if you're considering listing your business or using the site once it relaunches, make sure those legal documents appear before you submit any data.
There's no history of the site in the Wayback Machine, which means it's either very new or wasn't widely crawled before. The owner's other projects, listed on the homepage, do appear to be live, so the agency seems to have a track record. Overall, webwikis.es looks like a legitimate project in progress, but it's not ready to trust yet for anything beyond reading the blog post already published.