pingtraceroutewhoisdns lookupdnsseczone transfersubnet calctls checkcipher testcert pinningport scanbanner grabsnmp walkjwt parserhash & hmacpassword genqr codesmac lookupip converterspf / dkim / dmarcgeo-ipasn lookupssh clientai analysisuptime monitoringtls-expiry alertsstatus pagesdomain health

guest@abr:~$ nettools --overview

NetTools — every diagnostic,
one calm place.

Network engineers, sysadmins and security folks juggle a dozen single-purpose sites. NetTools puts the whole toolkit behind one fast interface — with plain-language answers, not raw dumps.

82diagnostic tools

24/7always-on monitoring

A–FAI-graded reports

€0to start

CAT·01 recon/

Reconnaissance

whois, geo-IP, ASN lookup, banner grab — know what's out there.

CAT·02 scan/

Scanning

port scan, UDP scan, SNMP walk, service detection.

CAT·03 web/

Web

security headers, WAF detect, URL scan, redirect trace.

CAT·04 email/

Email security

SPF, DKIM, DMARC, blacklist & spoofability checks.

CAT·05 threat/

Threat intel

reputation lookups, phishing & malware indicators.

CAT·06 dns/

DNS

lookups, DNSSEC, zone transfer, propagation.

CAT·07 crypto/

Crypto & TLS

TLS grades, cipher tests, cert pinning, JWT, hashes.

CAT·08 util/

Utilities

subnetting, converters, generators — instant, offline, client-side.

web — nettools.abr.cloud, incl. a real SSH terminal macOS — native app, retro phosphor UI flipper zero — companion (in the lab) ai — one tap turns any output into a plain-English read

guest@abr:~$ nettools --modes

One app, four modes.

Everything below is the real web app at nettools.abr.cloud — no mockups.

nettools.abr.cloudtools

NetTools — the Tools workspace with searchable categories and Subnet Calc open

Tools — 82 diagnostics, searchable, one calm workspace.

nettools.abr.cloudinvestigate

NetTools — the Investigate AI agent running a Domain & Website Audit

Investigate — point the AI at a domain, get a graded report.

nettools.abr.cloudterminal

NetTools — the in-browser SSH terminal with a saved-servers sidebar

Terminal — a real in-browser SSH terminal (Pro+).

nettools.abr.cloudmonitor

NetTools — always-on cloud monitoring of sites, ports and TLS certificates

Monitor — always-on watch on sites, ports & certs; we email you the moment something breaks. Free.

guest@abr:~$ nettools monitor example.com --watch

We watch it,
so you don't have to.

Point NetTools at a domain or server and it checks — around the clock, from the cloud, no agent required — whether your site is up, your TLS certificate is about to expire, and your email posture (SPF/DMARC/MX) still holds. The moment something breaks, you get a plain-language email that says what and how to fix it. Every plan includes a monitor — even Free.

[watch]

Always-on, from free

Uptime, TLS-expiry, ports and a 7-check Domain Health composite, checked on a schedule. Alerts are spike-proof — we re-check before we email, so no false-alarm floods.

[fleet]

One calm dashboard

Fleet Health folds every open issue across your domains and servers into one worst-first list in plain language — plus history, uptime %, and server CPU/RAM/disk via a lightweight agent.

[share]

Share it — or white-label it

Turn any monitors into a public status page. Agencies & MSPs get it fully white-label — your brand, your domain, client-ready PDF reports — from €29/mo.

guest@abr:~$ nettools investigate example.com --grade

Point it at a domain.
Get a graded report.

Investigate is the AI agent inside NetTools. Give it a target you're authorised to assess — a domain, website or IP — and it picks the right checks, runs them, and chains each result into the next. You get one plain-English report with an overall grade and prioritised fixes.

[assets]

Asset & infra audits

Domain & website, IP & infrastructure, email spoofability, company due-diligence — every finding grounded in real tool output, never guessed.

[chain]

Chained automatically

It works the loop — scope, collect, pivot, verify, document — so DNS, mail records, certificates and headers all get followed without you lifting a finger.

[report]

A report you can act on

Overall grade, findings with severity, plain meaning and the fix — saved to your history and exportable as a branded PDF.

guest@abr:~$ cat /etc/nettools/pricing

Start free.
Scale when it earns it.

Simple pricing. Cancel anytime. Billed securely by Paddle.

FREE

€0

For quick checks, no signup.

All offline utilities
Core checks (ping, DNS, WHOIS, TLS) — one quick CAPTCHA
Instant, in your browser

open free

Small by choice.

We'd rather ship one sharp tool than ten dull ones.

Substance first, then craft: every result explains itself in plain language, and the whole category deserves better than banner ads and cramped tables — so we're rebuilding it with the polish it never had.

No ads. No dark patterns. No selling your data. Ever.

Hi, I'm Majid Nassir — the engineer behind ABR. Thirteen-plus years in networking and security across Europe (CCNP, CCNA, CEH), and now a studio of one: I design, build and run everything here myself — every tool, every pixel, every server.

ABR is abr (ابر) — Persian for cloud. NetTools is the first product; more are in the lab.

🇩🇪 Saarbrücken, Germany CCNP · CCNA · CEH GDPR-first by conviction majidnass.ir impressum

Shipping now

NetTools

Network & security diagnostics across web and macOS — with an AI analyst on call.

open it →

In the lab

More coming

New tools for people who build and run things. Windows & Linux builds, and a thing or two we're not ready to name.

Tools with soul,
for people who run networks.