Compare Chrome extensions: Domain Availability Checker and Whois Lookup vs Multi-highlight

Stats Domain Availability Checker and Whois Lookup Domain Availability Checker and Whois Lookup Multi-highlight Multi-highlight
User count 3,000+ 202,042+
Average rating 4.00 4.10
Rating count 55 539
Last updated 2016-07-20 2020-06-17
Size 104.45K 60.78K
Version 2.4.2 1.21
Short description
This plugin checks a domains availability straight from your toolbar. Perfect for web designers/developers. Search and highlight multiple words on web pages.
Full summary

*** TEMPORARILY DOWN due to a botnet abusing our service. We will be working on a fix and will try to issue updates for first week of August. Regular updates will then be put into place!


This extension checks the availability of a domain name. What's the point of going to another page when you can check it from your toolbar. It fully supports IDN Domains encrypted with PunyCode for safe transmission.

Can now quickly change between registrars by click the more... link when you search for a domain name.

A large amount of domain extensions are supported, and if you want to suggest more or other registrars, leave a comment below and on the next release we'll try to put that one in.

You can favourite a domain by clicking on the star when you search. The list is sortable and you can quickly filter by typing in the input box on the favourites tab.

Automatic domain checker, periodically checks the expiry date and alerts you when the domains status changes. Watch domains manually by adding to favourites or check automatically, weekly, fortnightly, monthly or quarterly.

Lookup domain whois information for any extension.

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Can do for you:

  • Highlight multiple english words on all pages. (whole word matching for english words, currently)
  • Your words will be saved.
  • Needs to refresh opened pages after install this extension.

If you love it, you can support it on Patreon (https://www.patreon.com/alexius_lee) or donate via PayPal (https://www.paypal.me/alexiuslee)

Change log:

  • 1.21 - Remove tracelog codes (which has stopped receiving years ago).
  • 1.12~1.20 - Bug fix.
  • 1.11 - Temporary rollback to v1.7.
  • 1.10 - Change: Skip "content editable" elements; Support single letter non-english words.
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