Today Giancoli Answers was unavailable for a few hours this morning, and some browsers, depending on their internet service provider, might not reach Giancoli Answers for up to 48 hours. This was due to a Distributed Denial of Service (DDoS) attack against the company (Namecheap.com) that provided our Domain Name Server (DNS). DNS translates the text "giancolianswers.com" in the website URL into an IP address (220.127.116.11 in our case). It works like a signpost that tells your web browser where to go after you type in a website address. Details of the attack are described here. We have switched to a more robust and high performance DNS provider (the same one used by Amazon.com) to help guard against this type of thing occurring again.
We take uptime very seriously, and I hope you have not been too inconvenienced by this outage.
All the best with your studies,