Show HN: Add 'unlock' to booking URL to auto-compare the same hotel across sites

[notifinance]

I built this after getting tired of checking Booking, Expedia, Hotels.com, etc. one by one.

Now if you have a hotel URL from Booking.com or Expedia, just add unlock before the domain — like: unlockbooking.com/… unlockexpedia.com/…

It redirects to a lightweight site that compares that same hotel’s prices across major booking platforms. No login, no installs, just a shortcut to a comparison view.

Example:

Try this Booking.com link: https://www.booking.com/hotel/us/indigo-dallas-downtown.html... → Now add unlock: https://www.unlockbooking.com/hotel/us/indigo-dallas-downtow...

Or this Expedia link: https://www.expedia.com/New-York-Hotels-The-Bowery-Hotel.h16... → With unlock: https://www.unlockexpedia.com/New-York-Hotels-The-Bowery-Hot...

Would love feedback or suggestions! Planning to add filters, mobile UX, and maybe email alerts if there’s interest.

[Kikawala]

Tried: <https://www.booking.com/hotel/us/best-western-plus-inn-and-s...>

Gives me a different hotel when adding unlock. From Best Western Plus College Station Inn & Suites to Best Western PLUS Hobby Airport Inn and Suites

[notifinance]

ah will improve in the next version ty!

[doormatt]

So which domains does this work for?

Because it doesn't work with:

https://hotels.com/

https://trivago.ca/

https://www.ca.kayak.com/

http://agoda.com/

https://www.tripadvisor.ca/

[notifinance]

Just expedia and booking now. Will add the others soon

[slater]

BDC & Expedia lawyers coming for those domains in 4...3...2...1...