My site (aerialsandtv.com) was only HTTP up to early March and we`d been suffering a fall off in visits, so when I found out Google were down ranking non HTTP sites I obviously updated mine. However, if anything we`re getting fewer visitors since then and our ranking appears to have dropped ! I did notice whilst the site was being trawled by Google (it`s a big site) over the next week or so many pages weren`t on the Google Cache. They have now reappeared, but is that anything to do with it and should our ranking get back to what it was now ? Is it the case that becoming HTTPS must improve our ranking and indeed our visitor numbers because Chrome reports HTTP sites as "insecure". There are quite a few big sites (e.g. Digital UK) which are actually still HTTP ! Does being HTTPS have any disadvantages ?