Popular X-Powered-By HTTP headers HPHP, HHVM/3.18.2, etc.

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0.00294% 0.00041% HPHP 0.00268% 0.00085% HHVM/3.18.2 0.00065% 0.00005% HHVM/3.18.1 0.00047% 0.00024% HHVM/3.13.1 0.00040% 0.00036% HHVM/3.20.2 0.00030%                        HHVM/3.9.1 0.00029% 0.00004% HHVM/3.15.2 0.00023% 0.00007% HHVM/3.12.1 0.00022%                        Highwire.com 0.00021% 0.00017% HHVM/3.18.3 0.00018% 0.00001% HHVM/3.19.1 0.00016% 0.00004% HHVM/3.15.3 0.00015% 0.00006% HHVM/3.15.1 0.00014% 0.00012% HHVM/3.19.2 0.00012%                        Hydrogen 0.00011%                        Hexo 0.00011% 0.00003% HHVM/3.10.1 0.00010% 0.00003% HHVM/3.6.0-dev 0.00009%                        HHVM/3.12.0 0.00008% 0.00001% HHVM/3.15.0 0.00008% 0.00002% HHVM/3.11.1 0.00008% 0.00099% HHVM/3.12.14 0.00008% 0.00195% HHVM/3.14.5 0.00008% 0.00002% HYPHP 0.00007%                        HHVM/3.6.6-dev 0.00007% 0.00001% HHVM/3.14.1 0.00007% 0.00001% HHVM/3.14.2 0.00006% 0.00001% HHVM/3.14.4 0.00006% 0.00002% HHVM/3.17.2

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