The Google satellite imagery and road imagery are updated at various frequencies depending on the area. LandInsight gets this imagery directly from Google's API but you should note that sometimes they will have updated the google.co.uk/maps but their API is still using older imagery.
Please see the satellite imagery examples below obtained on 19/02/2018:
Google Satellite on Google
Google Satellite on LandInsight
Here are the road imagery examples, also obtained on 19/02/2018:
Google Road on Google
Google Road on LandInsight
It's worth noting that sometimes Bing maps can be more up to date so you may prefer to use this if you're looking for more up to date satellite imagery.