This page's audience our own tag's counts — open to see them

Period

–Visits

–Page views

–Clicks to vendors

–Time on page

–Reading now

Clicks to vendors, by tool

Top countries

Devices

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Domainer

Free#22 of 25 in Domain Portfolio Management Software

Domainer: A free Linux tool for portfolio tracking, alerts, lookups, and open-source analytics. Ranked #22 of 25 in Domain Portfolio Management Software by our editors (6.9/10); pricing: Free plan; best for linux users wanting open-source analytics.

6.9/10Editor score

Visit Domainer

Domainer6.9 Visit Domainer

At a glance

Editor score
6.9 / 10
Pricing
Free plan
Best for
Linux users wanting open-source analytics
Free plan
Yes
Paid from
Free
Facts checked
20 Sep 2026

Where it wins
- Portfolio CRUD includes tags, notes, categories, and pricing fields
- RDAP lookups cover expiry, registrar, nameserver, age, and status
- Alerts, watchlists, reporting, and multi-format exports support daily monitoring
Where it doesn't
- No registrar synchronization or renewal automation
- No domain valuation or team access
- Active early development with roadmap items still ahead

Our verdict on Domainer

Domainer is a self-hosted, open-source Telegram bot for domain investors and portfolio operators on Linux. It provides portfolio CRUD with tags, notes, categories, and pricing fields, while keeping portfolio data in SQLite. The tool also supports RDAP-based WHOIS lookups, expiry tracking, availability checks, keyword scans across multiple TLDs, DNS lookups, parking-provider detection, and deterministic brandability scoring. Its focus is practical portfolio organization and monitoring rather than registrar operations or collaborative management.

For ongoing oversight, Domainer combines configurable expiry reminders with automated cron alerts and watchlist notifications for nameserver, status, expiry, and availability changes. The dashboard reports portfolio totals, expiring counts, TLDs, registrars, BIN values, and ROI. CSV, JSON, NDJSON, and TXT import and export make the portfolio data portable. Telegram, RDAP, and DNS form the core ecosystem, while deployment options include Node.js, Bun, Docker, or a pre-built container. Because it reads public registry data rather than using registrar APIs, its information layer is separate from registrar account management.

Domainer is a strong fit for Linux-based investors who want an open-source, self-hosted analytics and monitoring tool without a paid-plan structure. It should suit portfolios that need reminders, availability research, watchlists, reporting, and flexible data export. The boundaries are important: registrar synchronization, renewal automation, domain valuation, and team access are not part of the current feature set. Registrar API adapters and team workspaces are roadmap items, and the software is in active early development. Choose Domainer for control and portfolio visibility; choose an alternative when automated registrar workflows, collaborative access, or valuation capabilities are central requirements.

Your product? Our editors can test Domainer in depth and publish a review, labelled as paid · from $149/mo →

Domainer pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on github.com

Domainer fact sheet

Free plan	Yes
Paid from	Free
Included domains	Not verified
Renewal automation	No
Registrar synchronization	No
Domain valuation	No
Expiration alerts	Yes
Team access	No
Portfolio reporting	Yes
Deployment	Self-hosted
Platforms	Linux
Support	Docs, Community
Built for	Solo, Small business (editorial estimate)
Integrations	3 integrations: Telegram, RDAP, DNS
Pricing	Free plan
Website	github.com
Facts checked	20 Sep 2026

Domainer integrations

Domainer lists 3 integrations on its own site.

Telegram
RDAP
DNS

Alternatives to Domainer

See all Domainer alternatives →

Used Domainer? Be the first to review it

The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Domainer for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

Write a reviewTwo minutes · verified accounts only · read by an editor before it appears

Reviews come only from verified accounts. Sign in or create an account first — your e-mail is never shown.

Title

Your review

0 characters · at least 80, up to 3,000

Pros (optional · one per line)

Cons (optional · one per line)

Your name (shown with your review)

Role (optional)

Company (optional)

How long have you used it?

I've used Domainer myself and this is my honest opinion — nobody paid or asked me to write it.

Posted from your verified account. Reviews appear after an editor reads them, usually within two working days.

Featured on iTechGuides

Domainer is listed in our Domain Portfolio Management Software directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/domainer/"><img src="https://www.itechguides.com/best/badge/domainer.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update