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Day 65: new resources are added every day. See what's new
Best Productivity ResourcesBy Shushant LakhyaniVerified creator

Web App

who.is

A free lookup for domain WHOIS, DNS and IP information.

Visit who.is4.4

  • Rating

    4.4 / 5

  • Pricing

    Freemium

  • Difficulty

    Beginner

  • Works on

    Web

Built with love by Shushant Lakhyani. Building bestproductivityresources.com

Free: 1,100+ ways people make money onlineFree: 399+ ways to make money online

What is who.is?

who.is lets you look up who registered a domain, when it expires, its name servers, DNS records and IP details, using WHOIS and RDAP data. Lookups are free, uptime monitoring is free for one domain, and paid plans add more monitored domains and API access.

Pros: what who.is does well

  • Quick domain and DNS lookups
  • Free monitoring for one domain
  • Clear, readable results

Cons: where it falls short

  • Many records are privacy-redacted
  • More monitoring needs a paid plan

Who who.is is for

Founders and developers checking domains, DNS or expiry dates.

Who can skip it

People who never deal with websites or domains.

who.is alternatives

Not sold on who.is? These do a similar job, and each card says what it has in common.

All Research resources

DNS Checker

Focus: networking and web tools. Shares dns and domains with who.is. Free (who.is: Freemium). Rated 4.5 (who.is: 4.4).

Web AppFreeWeb
4.5Visit

DevDocs

Focus: documentation, api reference and developer tools. Also in Research and Workflows, like who.is. Free (who.is: Freemium). Adds Offline. Rated 4.7 (who.is: 4.4).

Web AppFreeWeb, Offline
4.7Visit

SSL Labs Server Test

Focus: ssl, tls and security. Also in Research and Workflows, like who.is. Free (who.is: Freemium). Rated 4.7 (who.is: 4.4).

Web AppFreeWeb
4.7Visit

changedetection.io

Focus: website monitoring, change alerts and price tracking. Also in Research and Workflows, like who.is. Free (who.is: Freemium). Rated 4.6 (who.is: 4.4).

Web AppFreeWeb, Cross-Platform
4.6Visit

JSON Crack

Focus: json viewer, data visualisation and developer tools. Also in Workflows and Research, like who.is. Free (who.is: Freemium). Rated 4.5 (who.is: 4.4).

Web AppFreeWeb
4.5Visit

Fontalog

Focus: fonts, typography and font search. Also in Workflows and Research, like who.is. Free (who.is: Freemium). Same 4.4 rating.

Web AppFreeWeb
4.4Visit

Free alternatives to who.is

Want to spend nothing? These free picks cover similar ground.

Shoogle

Focus: shadcn, ui components and search. Also in Workflows and Research, like who.is. Free (who.is: Freemium). Same 4.4 rating.

Web AppFreeWeb
4.4Visit

1000UserGuide

Focus: user acquisition, marketing channels and indie developer. Also in Workflows and Research, like who.is. A website, not a web app. Free (who.is: Freemium). Rated 4.7 (who.is: 4.4).

WebsiteFreeWeb
4.7Visit

Awesome Machine Learning

Focus: machine learning, awesome list and frameworks. Also in Research and Workflows, like who.is. A website, not a web app. Free (who.is: Freemium). Rated 4.7 (who.is: 4.4).

WebsiteFreeWeb
4.7Visit

Free for Dev

Focus: free tiers, developer tools and directory. Also in Research and Workflows, like who.is. A website, not a web app. Free (who.is: Freemium). Rated 4.7 (who.is: 4.4).

WebsiteFreeWeb
4.7Visit

Claude Deep Research Skill

Focus: claude, deep research and ai skill. Also in Research and Workflows, like who.is. An AI tool, not a web app. Free (who.is: Freemium). Rated 4.6 (who.is: 4.4).

AI ToolFreeCross-Platform, Web
4.6Visit

Grok Bot Masterclass

Focus: grok, ai and prompting. Also in Workflows and Research, like who.is. A blog, not a web app. Free (who.is: Freemium). Rated 4.6 (who.is: 4.4).

BlogFreeWeb
4.6Visit
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