In physics, spacetime (or space–time) is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of a fourth dimension that is of a different sort than the spatial dimensions. According to certain Euclidean space perceptions, the universe has three dimensions of space and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.

However, the main purpose of this site is to track visitors and web robots in real-time. Internet bots, also known as web robots, WWW robots or simply bots, are software applications that run automated tasks over the Internet. Typically, bots perform tasks that are both simple and structurally repetitive, at a much higher rate than would be possible for a human alone. The largest use of bots is in web spidering, in which an automated script fetches, analyses and files information from web servers at many times the speed of a human.


Each server can have a file called robots.txt, containing rules for the spidering of that server that the bot is supposed to obey. This site checks if bots obey rules in robots.txt file, displays what do they crawl, and logs their activities to a file. Most statistics about visitors and bots is available in real-time. For each visitor and bot you can get detailed information about IP address including associated domain name (if one exists) and geographic location, basic browser info, time and pages that were visited.

Like many other websites, we also use log files. The information inside the log files includes internet protocol (IP) addresses, Internet Service Provider (ISP), type of browser, date/time stamp, referring/exit pages, and number of clicks to analyze trends, administer the site, track user’s movement around the site, and gather demographic information. IP addresses, and other such information are not linked to any information that is personally identifiable. This information is also published and available to every visitor of this website.

Privacy Policy
We use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. You should consult the respective privacy policies of these third-party ad servers for more detailed information on their practices as well as for instructions about how to opt-out of certain practices.

• Google, as a third party vendor, uses cookies to serve ads on this site.
• Google's use of the DART cookie enables it to serve ads to users based on their visit to this site and other sites on the Internet.
• You may opt out of the use of the DART cookie by visiting the Google ad and content network privacy policy.