# BulkDomainSearch.si

> BulkDomainSearch.si is a free, high-speed bulk domain availability scanner and RDAP lookup engine designed specifically for Slovenia's `.si` top-level domain (ccTLD), recognized globally as the premier extension for "Super Intelligence" (SI).

BulkDomainSearch.si allows domain investors, developers, and tech startups to check hundreds or thousands of `.si` domain names simultaneously. Powered directly by the official Academic and Research Network of Slovenia (ARNES) RDAP protocol (`rdap.register.si`), it provides real-time, authoritative availability data with zero registrar caching delays.

## Core Capabilities
- **Bulk Domain Search:** Check up to 5,000 `.si` domains in a single session.
- **CSV & TXT File Upload:** Drag-and-drop or select any `.csv` or `.txt` file with automatic delimiter and column detection (supports single-word lists, keyword lists, and dictionary datasets).
- **Multi-Threaded Concurrency:** Configurable parallel worker threads (3 to 12 workers) for optimal lookup speed (3 to 8 domains/sec) while respecting registry rate-limits.
- **Single Search & Instant Verification:** Sub-second latency lookup for individual `.si` names with HTTP code breakdown (RFC 7480).
- **One-Click Export:** Download clean CSV reports of available domains or full scan logs.
- **Hosting & Registrar Integration:** One-click registration and web hosting via Hostinger (with an exclusive 20% discount) and Namecheap.
- **Super Intelligence (SI) Focus:** Curated presets and intelligence for trending AI-to-SI rebrand terms following the White House Executive Order on Super Intelligence.

## User Queries & Intent Matching
- **How to search multiple words at once of si domain name:** Paste words line-by-line into the bulk input box or upload a `.csv` file. The tool automatically appends `.si`, validates characters (2–63 chars), and checks availability simultaneously across parallel worker threads.
- **Bulk Si domain search:** Free, browser-based multi-threaded scanner requiring no API key and no sign-up.
- **Domain search si:** Authoritative RDAP lookup direct to `rdap.register.si`.
- **Super Intelligence SI domains:** Real-time checking of tech and dictionary gems for AI/SI brand protection.

## Technical Details
- **Protocol:** RDAP (RFC 7480 / RFC 9083) via `https://rdap.register.si/domain/{name}.si`
- **Availability Signal:** HTTP 404 (Not Found) confirms domain is unregistered and open for immediate registration. HTTP 200 confirms domain is active/registered.
- **Registry Constraints:** Length 2–63 characters; lowercase a–z, 0–9, and internal hyphens. No local presence or Slovenian residency required for registration.

## Documentation & Links
- [Full Documentation for LLMs](https://bulkdomainsearch.si/llms-full.txt): Complete guide, API schema, CSV formatting rules, and registry reference.
- [Web Application](https://bulkdomainsearch.si/): Main interactive search interface and bulk scanner.
- [Knowledge Hub & Blog](https://bulkdomainsearch.si/blog): Research benchmarks and tutorials for .si domains.
- [How to Check Multiple .SI Domains](https://bulkdomainsearch.si/blog/how-to-check-multiple-si-domains-at-once): Step-by-step guide to parallel RDAP bulk checks.
- [Bulk .SI Domain Search Guide](https://bulkdomainsearch.si/blog/bulk-si-domain-search-complete-guide): Complete investor and startup handbook.
- [Super Intelligence (.SI) Domains](https://bulkdomainsearch.si/blog/super-intelligence-si-domains-ai-branding): AI branding and ASI domain acquisition guide.
- [Can Anyone Register a .SI Domain?](https://bulkdomainsearch.si/blog/can-anyone-register-si-domain-rules-eligibility): Official ARNES eligibility rules and global access.
- [Cheapest .SI Domain Registrars](https://bulkdomainsearch.si/blog/cheapest-si-domain-registrars-price-comparison): Pricing and renewal comparison.
- [Register.si WHOIS Lookup & RDAP](https://bulkdomainsearch.si/blog/register-si-whois-lookup-rdap-guide): Technical protocol comparison and REST API queries.
- [Finding Available Short .SI Domains](https://bulkdomainsearch.si/blog/finding-available-short-si-domains): 2-letter, 3-letter, and word hack discovery.
- [High-Concurrency Scanner Architecture](https://bulkdomainsearch.si/blog/programmatic-bulk-domain-scanner-architecture): Engineering software architecture for domain scanners.
- [.si vs .ai Comparison Guide](https://bulkdomainsearch.si/compare/si-vs-ai-domains): Detailed valuation, pricing ($12/yr vs $140/yr), and Super Intelligence investment analysis.
- [Sample CSV Wordlist](https://bulkdomainsearch.si/sample-si-words.csv): Curated list of 100 high-potential startup and tech dictionary candidate keywords.
- [Register.si Official WHOIS](https://www.register.si/whois/): Official ARNES national registry lookup.
- [GitHub Repository](https://github.com/MishrSurya/BulkDomainSearch): Open-source Next.js application codebase.