Read User Reviews
User reviews are underrated but should be your first resource for checking up on many things like the product quality, availability with the seller you’re buying from, the fit and sizing and much more.
It should be the first place you check and should influence your buying choice. Many retailers also offer review aggregates online, which means that they’ll collate product reviews from multiple sources. This is helpful, but you should base your decision on user reviews, which is posted by users who actually bought the product.
Go through a few and keep an eye out for fake reviews; websites and sellers often resort to this underhand tactic. So, check the difference in the count of positive and negative reviews. A sizeable difference means that the general trend is accurate. A user review count difference which is not substantial may conversely reflect something fishy, so check out other websites too.
Read Product Specifications
I know this is one of those things that you assume the seller has manipulated, but it’s also the one place where the seller is actually telling you about the product. Also, for electronics or clothing, you should definitely not ignore this section. So, if you think the deal sounds too good to be true, then the product specification or description is the one place you should check to see if what you think you’re getting is actually right or not.
If the description is non-existent or too short then you can post questions, call the customer support of the website or check on the internet to see if other places are offering similar deals. Unlike what newcomers to online shopping might think there will not be a huge price difference in the product you want to buy across multiple websites, so if you see a big difference on only one website, then there could be something you might want to check further!
Most top websites offer buying guides that are tailored to their product assortment. Most of the info is some thing that you can find on the internet anyways, however you should listen to what the best practices are the website states while choosing products from that website.
So, if you’re buying clothing, then buying guides are absolutely essential and you should prefer the ones on the website you’re actually buying from.