EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Aug 24·5 min read
Building certgrep.sh: a free certificate transparency search engine
TL;DR
certgrep.sh is a free certificate transparency search engine designed to help users quickly search for domain occurrences in certificate logs. It leverages a trigram index to efficiently handle regex queries, making it a valuable tool for detecting malicious domains.
✦ Why It Matters
Start using certgrep.sh today to enhance your domain monitoring and threat detection capabilities.
Key Takeaways
- Utilize certgrep.sh for efficient domain searches in certificate logs.
- Implement trigram indexing to improve regex query performance.
- Leverage just-in-time hydration for cost-effective certificate retrieval.
- Consider building internal tools to meet specific detection needs.
How It Works
certgrep.sh uses a trigram index to break domain names into overlapping three-character segments, allowing for efficient matching against regex queries. This approach narrows down the candidate set before applying more complex regex operations, significantly reducing the computational load.