Hi i have few website on my PBN around 10-15. Expired domain, All high quality, manual writing, separate ip etc... Today i did my TF checking, and i was surprise to see half of them was down. Some to 0 or 1, and some between 5-10. All of them was between 10 and 20 before. Where is this comefrom ? Anyidea where i should look at ? Google slapt me or what? What should i do with this TF ? Building quality content, and stop linking to my money site right? Maybe buy some link to powerup the TF and going back to "normal". Should i worry that much ? Do i have to trash them? I don't really know what to do, surely i will check them carefuly for 1months. It's a nice experience for me, i'm new in this field... Thanks a lot for advice. I know TF is not the GOD metric, but going down to 0 or 1, it's something everyone need to look at no?