// tool reference · Network & Firewall
Security Toolkit Free
ヘッダー、DNS、TLS、IOC、ハッシュ、JWT、CIDR、CSP をひとまとめに。
What it does
Eight utilities behind one page, for the small checks that interrupt real work. Each runs independently; pick one with the tab selector.
When to use it
- You need a quick, exact answer without opening a separate tool.
Inputs
Field names are the actual form parameters, verified against source.
| Field | 種類 | Required | Notes |
|---|---|---|---|
| check | select | required | Which utility: headers · dns · tls · ioc · hash · jwt · cidr · csp. |
| input | text | 任意 | The value for the selected utility. |
| host | text | 任意 | Hostname — for dns / tls. |
| domain | text | 任意 | Domain — for dns. |
| jwt | textarea | 任意 | Token — for jwt. |
| cidr | text | 任意 | CIDR — for cidr. |
| csp | textarea | 任意 | Policy — for csp. |
What you get back
A focused result for the selected utility.
活用例
Input
check = cidr cidr = 10.0.0.0/24
Output (abridged)
Network: 10.0.0.0 Broadcast: 10.0.0.255 Usable: 10.0.0.1 – 10.0.0.254 (254 hosts) Netmask: 255.255.255.0
How it works
Deterministic throughout. The dns/tls/headers utilities make an outbound request; the rest are local.
Limits
Read live from the platform configuration.
| Rate limit | 30 requests / 60s (platform default) |
Limitations — what it does なし do
Quick checks, not deep analysis. Each utility answers one narrow question -- for real depth use the dedicated tool (JWT Auditor, Header Checker, DNS Audit) rather than the toolkit tab.
プライバシー
Nothing is stored. Outbound checks (dns/tls/headers) are SSRF-guarded and IP-pinned.
Standards
OWASP Secure HeadersRFC 4632 (CIDR)