yassineaboukir/sublert
Sublert is a security and reconnaissance tool which leverages certificate transparency to automatically monitor new subdomains deployed by specific organizations and issued TLS/SSL certificate. observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2735
- days_rel: n/a
- days_push: 2035
- n_releases_24m: 0
Adoption not part of the score
1034 stars · 165 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Sublert is a Python CLI security and reconnaissance tool that uses certificate transparency logs to monitor new subdomains issued TLS/SSL certificates by specific organizations. It is designed to run periodically (e.g., daily via cron), performs DNS resolution to identify working subdomains, and pushes notifications of new findings to a Slack workspace.
Use cases
- monitor new subdomains deployed by a target organization
- discover subdomains via certificate transparency logs for bug bounty recon
- get Slack notifications when a company issues new TLS certificates
- resolve discovered subdomains via DNS to find live hosts
- schedule automated daily subdomain monitoring on a VPS
- track attack surface growth of specific domains over time
When to choose
- you need automated, scheduled subdomain monitoring with Slack alerts
- you do bug bounty or penetration testing reconnaissance on specific organizations
- you want a lightweight Python tool that leverages certificate transparency logs
When to avoid
- you need a one-shot full subdomain enumeration with many data sources rather than ongoing monitoring
- you require active scanning or vulnerability assessment, not just discovery
- you need Windows-native support or a GUI
- you want actively maintained software with recent updates
Facets
cli-tool · maturity maintenance
monitoring web-scraping security cli security penetration-testing osint python cli certificate-transparency subdomain-enumeration reconnaissance bug-bounty slack-notifications dns-resolution linux
1 source
- readme: https://github.com/yassineaboukir/sublert · fetched 2026-08-28 · 955683d307c7
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| yassineaboukir/sublert | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="yassineaboukir/sublert")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem