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Usage Statistics

A statistic in which the counting methods change within the periods considered has become meaningless! Therefore, unfortunately, the previous form of the statistic cannot continue. The old data is still available in the archive but it is no longer comparable with the new data.

For example, if the same IP dialed into the homepage at two different times, this was counted as two visits. The required interval between recognizing a single visit and two visits was 30 minutes. (The assignment of an IP to a user could have changed during this time). The new server operating system counts this process as one visitor only.

However, this homepage is widely used in many internal networks (intranets of universities, companies) that appear outside as a single IP. All users in these universities and companies are now only a single visitor. Although the log files on the server become larger, about 70 to 80% of the previously counted data is recorded only. Continuous statistics are therefore no longer possible

Visitors Visits Pages Hits GiBytes
July 202093 938130 252333 0433 915 572258,43
August 202080 584112 182292 1203 680 714237,76
September 2020106 086143 773354 3384 303 923175,67
October 2020100 458139 946335 0184 571 159159,15
November 2020138 973189 852498 1644 993 235314,36
December 2020103 720141 893440 9504 960 846252,09
January 2021101 730142 372398 6944 942 4961181,20
February 202191 531127 745424 5204 653 003404,77
March 2021106 113151 153396 7075 399 492254,46
April 2021114 698156 517483 8505 374 035273,50
Mai 202199 735138 568411 1645 321 407249 11
June 2021111 454151 488449 2985.378 091233,16
Total:1 249 0201 725 7414 817 86657 493 9733.994

In general, it can be seen that visitor traffic increases by about 5 to 10% per year. (An exception is the year of the pandemic, but there was an above-average increase in the downloads of the offline archive). For about the same length of stay and about the same number of pages viewed per visit, the number of pages accessed increases at the same rate. This can be explained by increasing the number of pages indexed by Google (currently about 7 250). A large proportion of these is on the first page of Google search results. In total, about 60% of the visitor traffic comes to this homepage via Google search. Together with images, scripts, and PDF documents, this homepage contains about 24 500 linked files. So, at present, in the overview of radar units, one radar is added almost daily with its known technical data.