Dear sir,
Please first take a look at my profile and skillset.
My main skill is LINUX.
As your website is static, the problem comes from linux, I suspect you got invested by a rootkit, and they run on the kernel level and can even hook libpcap so you don't see they are there when you do who, last, ps, etc
Moreover, I am a whitehat hacker, preparing the certification from SANS institute, so taking a look and protecting you from a DDOS attack is ... what I would like at dream future job when I get this certifcation.
By the way, I am a french male that garduated in univeristy (Information Technology), decided not go to master, phD as I have only two aims and loves in my life: Linux/Unix & security.
Looking forward to hear from you
Regards,