What theme is this ?

Is there anyone who can help me ??

Use this to check

https://www.wpthemedetector.com/

Doesn’t work :/

Does for me

Doesnt work for that site ?? is there another way ?

It does work for that site!!

here you go.

WP configuration:Standard. Previous analysis:
Date: Last analysed by WPTD on 2014-07-06.
Page: https://www.lifehack.org
Previous results:
Theme: lifehack-v4 (same theme detected now).
WordPress configuration: Standard.
Plugins: 1 plugin was detected last time.
Theme changes:The active theme has not changed since this site was first tracked by WPTD on 2013-07-03.
Site popularity:
In WPTD: WPTD is quite frequently asked to analyse this site.
Alexa Rank: 3,006 (current Global Alexa Rank). This site is very popular in United States, with an Alexa Rank of 1,765 in that country.
Backlinks: This site has 9,333 backlinks, according to Alexa.

:p It may not have worked for DarKr0x at those particular times and locations. The most useful to find out whether the website is using a distributed theme will be in the style.css file or if it exists the readme.txt file.

The readme.txt could (there is no should) be in the root directory, e.g. https://www.lifehack.org/readme.txt

The style.css file will be found in the “themes” directory, and you can find the URL to that directory by right clicking on the page and selecting ‘View source’. Then a popup window of the code of the Webpage will appear and you can search for the text “themes/” to find an example of its URL in use.

That website however has nothing useful in its style.css file, suggesting the theme developer does not want to share us that information and so we’ll never know whether the site was built using a distributed theme unless they disclose it.