How to Determine Which IP Addresses are Hitting Your Website the Most

This short but detailed guide will explain how you can determine which IP addresses are hitting your website the most.

This is a brief one. Thanks to The How-To Geek for bringing this command into my troubleshooting repertoire.

A bit of background first. This command is helpful to determine who is causing the most hits to your web site. On my music blog, I post a fair number of (totally legal) MP3s. Some less than ethical people often use those MP3s to stream via their site, causing mine to be slower (and a larger bandwidth bill). By figuring out the IP address of the site/person “stealing” my bandwidth I can then block their IP from accessing any of my content.

Note: you’ll need shell access to your web server log files

  1. SSH (or telnet) to your web host. Switch to the directory that stores your web server log files.
  2. Run this command:

    tail -100000 access.log | awk '{print $1}' | sort | uniq -c |sort -n

    where 100000 is the number of lines (starting from the end of the log file) you want to search, and access.log is the name of your web server access log.

  3. Terminal with command to determine IP addresses hitting a website

  4. The result will be a (probably) fairly long list of IPs, sorted by fewest hits to most. The first value in each row is the number of times the IP address (the second number) accessed your site (in the number of lines of the log file you specified).

    Use the host command to determine the fully qualified domain name of any IP address that shows up (you’ll probably want to know who the ones that hit your site the most are). In the screenshot example below, two of the IPs that hit simplehelp.net the most were Googlebot and the Yahoo Site Crawler.

  5. terminal with tail awk uniq sort

  6. If there’s an IP/domain that looks suspicious, you can check to see which files they were hitting by using the command:

    tail -1000 access.log | grep xx.xx.xx.xx

    In that command, 1000 is the number of lines to check, access.log is the name of your web server access log, and xx.xx.xx.xx is the IP you want to sort by. I’d suggest using a smaller number (1000 vs. 100000 as used in the first command) as you probably don’t need/want to see every file they accessed. If you do, increase the 1000 number. Or, if not very many results show up, that means that they were hitting your site “earlier”, and you’ll want to increase 1000 to a higher number.

  7. Now you know which IP addresses are hitting your website the most.

If you’re using WordPress, the Simple History plugin is another way to determine info about the IPs visiting your site, and is particularly helpful for doing security checks.


If this article helped you, I'd be grateful if you could share it on your preferred social network - it helps me a lot. If you're feeling particularly generous, you could buy me a coffee and I'd be super grateful :)

buy a coffee for simplehelp.net


Home » Security » How to Determine Which IP Addresses are Hitting Your Website the Most