Oh StartSSL places its PKI in 360's server. You know, i hate 360. SO please beware if the website is using StartSSL. Here is the [link](https://pierrekim.github.io/blog/2016-02-16-why-i-stopped-using-startssl-because-of-qihoo-360.html).

And here comes the vim-tips:

```text
You probably know that 'u' is undo. Do you know that Ctrl-R is redo?
```

It comes from [here](https://twitter.com/vimtips/status/699277152399835136).