Oswaldo Carabano

Reverse nameserver lookup across 1,075 gTLDs: give it a nameserver and get every domain delegated to it. Built from registry zone files rather than a passive DNS sample, so it is the registry's own record of delegation. For infrastructure mapping, OSINT and security research.

Scrape public U.S. federal contract opportunities from SAM.gov: solicitations, awards, sources sought, agency and contact details, the full solicitation text, and the solicitation documents themselves. No API key, no login, no session cookies.

Scrape Sauto.cz, the largest Czech car marketplace: price, mileage, year, fuel, gearbox, make/model IDs and location for cars, vans, trucks, motorbikes and campers. Add-on: VIN, full equipment, engine, STK, GPS and dealer phones, emails and company ID. Dealer list mode. No login.

Watches registry zone files for domains that dropped out, with how many days they have been absent. Zone exit happens about 35 days before release, so this is domain expiration monitoring at its earliest point: an early watchlist, not a list of expired domains you can buy today.

Extract ATP, WTA, Challenger and ITF match results, upcoming schedules, player profiles and rankings from TennisExplorer, with derived match status and a pinned UTC day boundary.

Scrape public project listings from Workana, Latin America's largest freelance marketplace: budget, skills, client country, proposal count and client reputation signals. Only filters that Workana actually applies. Declares its own coverage ceiling. No login, no session cookies.

Scrape Autohero used-car listings in Germany, France, Spain, Italy, Belgium, Poland, Austria, Netherlands and Sweden: price, monthly payment, price drops, mileage, engine, CO2, owners, damages and branch. Optional details add VIN, equipment, damage photos, service history and warranties. No login.

Scrape Zigbang (직방), South Korea's rental app: one-room, villa and officetel listings for monthly rent, jeonse and sale in Seoul, Busan, Gyeonggi and all of Korea, with KRW prices, area, floor, GPS, address, photos, subway access and the licensed agent's contacts. No login.