X-Clacks-Overhead
HTTP response headerX-Clacks-Overhead is a non-standardised HTTP header based upon the fictional work of the late great Sir Terry Pratchett. This plugin enables you to add the pre-requisite 'GNU Terry Pratchett' as well as other custom X-Clacks-Overhead headers to Craft.
Header usage statistics
X-Clacks-Overhead response header information and usage statistics.| Websites using header X-Clacks-Overhead | 58,581 |
| Percentage of websites that use X-Clacks-Overhead header | <0.1% |
| Total discovered header values | 207 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country |  US |
X-Clacks-Overhead Directives
X-Clacks-Overhead directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|
Distribution by websites popularity
X-Clacks-Overhead detection in the top websites by popularity| Top 10k sites | 31 websites |
| Top 100k sites | 167 websites |
| Top 1m sites | 1,007 websites |
Websites utilizing X-Clacks-Overhead
List of websites that use X-Clacks-Overhead header| Domain | Country | Rank | Contacts |
|---|---|---|---|
| US | 178 | ||
| US | 452 | ||
 DE | 1,539 | ||
| US | 1,567 | ||
| US | 1,797 | ||
| US | 2,015 |
Flat price per the report, subscription is not required.
Geographical Distribution
Header usage distribution by websites across the globe.Common header values
List of top common X-Clacks-Overhead header values| Header value | Value prevalence |
|---|---|
| GNU Terry Pratchett | 95.85% |
| GNU Terry Pratchet | 1.76% |
| GNU Natalie Nguyen | 0.28% |
| GNU Romana Kitty, GNU Ben Grayman, GNU Michael Hofer, GNU Lincoln Kliman, GNU Larry Scharf | 0.21% |
| GNU Terry Pratchett, Stephen Hawking, Prof. Dr. Georg Riccabona | 0.16% |
| GNU ~abraxas | 0.15% |
| GNU Terry Pratchett, Douglas Adams | 0.15% |
| GNU Terry Pratchett, Stephen Hawking | 0.14% |
| GNU Terry Pratchett, Paul Brown, Gaz Hunter | 0.14% |
| "GNU Terry Pratchett" | 0.12% |
| Terry Pratchett, Noirin Trouble Pluinceid, Dan Kaminsky | 0.05% |
| GNU Terry Pratchett, Lester Haines | 0.05% |
| GNU William Hartnell, Patrick Troughton, Jon Pertwee | 0.04% |
| GNU Terry Pratchett, John TotalBiscuit Bain | 0.04% |
| GNU Annemiek Lutz | 0.04% |
| GNU Terry Pratchett, Leonard Nimoy, Alan Rickman, B. B. King, David Bowie, Natalie Cole, Ben E. King, Ron Glass, Christopher Lee & Ian Fraser Kilmister | 0.03% |
| GNU Terry Pratchett GNU Iain Banks | 0.03% |
| GNU Terry Pratchett, GNU Iain Banks, GNU John Peel, GNU Simon Ricketts | 0.02% |
| GNU Sir Terry Pratchett | 0.02% |
| GNU Manfred Schwingenschloegl, Johnny Cash, Douglas Adams, Terry Pratchett, Stephen Hawking | 0.02% |