File: /home/httpd/html/awstats.bak/awstats122016.freeharcore.com.txt
AWSTATS DATA FILE 7.1 (build 1.983)
# If you remove this file, all statistics for date 201612 will be lost/reset.
# Last config file used to build this data file was /home/httpd/cgi-bin/awstats.freeharcore.com.conf.
# Position (offset in bytes) in this file for beginning of each section for
# direct I/O access. If you made changes somewhere in this file, you should
# also remove completely the MAP section (AWStats will rewrite it at next
# update).
BEGIN_MAP 27
POS_GENERAL 2002
POS_TIME 2680
POS_VISITOR 10236
POS_DAY 17437
POS_DOMAIN 3454
POS_LOGIN 3684
POS_ROBOT 3839
POS_WORMS 4078
POS_EMAILSENDER 4209
POS_EMAILRECEIVER 4352
POS_SESSION 18180
POS_SIDER 18392
POS_FILETYPES 4487
POS_DOWNLOADS 4591
POS_OS 4639
POS_BROWSER 4876
POS_SCREENSIZE 5412
POS_UNKNOWNREFERER 5486
POS_UNKNOWNREFERERBROWSER 5989
POS_ORIGIN 6295
POS_SEREFERRALS 6429
POS_PAGEREFS 6573
POS_SEARCHWORDS 6748
POS_KEYWORDS 6900
POS_MISC 2344
POS_ERRORS 6959
POS_CLUSTER 3540
POS_SIDER_404 7105
END_MAP
# LastLine = Date of last record processed - Last record line number in last log - Last record offset in last log - Last record signature value
# FirstTime = Date of first visit for history file
# LastTime = Date of last visit for history file
# LastUpdate = Date of last update - Nb of parsed records - Nb of parsed old records - Nb of parsed new records - Nb of parsed corrupted - Nb of parsed dropped
# TotalVisits = Number of visits
# TotalUnique = Number of unique visitors
# MonthHostsKnown = Number of hosts known
# MonthHostsUnKnown = Number of hosts unknown
BEGIN_GENERAL 8
LastLine 20170101002316 16 2204 12890901964826
FirstTime 20161201004935
LastTime 20161231211033
LastUpdate 20170101052153 16 0 15 0 0
TotalVisits 351
TotalUnique 188
MonthHostsKnown 0
MonthHostsUnknown 188
END_GENERAL
# Misc ID - Pages - Hits - Bandwidth
BEGIN_MISC 10
QuickTimeSupport 0 0 0
JavaEnabled 0 0 0
JavascriptDisabled 0 0 0
PDFSupport 0 0 0
WindowsMediaPlayerSupport 0 0 0
AddToFavourites 0 0 0
RealPlayerSupport 0 0 0
TotalMisc 0 0 0
DirectorSupport 0 0 0
FlashSupport 0 0 0
END_MISC
# Hour - Pages - Hits - Bandwidth - Not viewed Pages - Not viewed Hits - Not viewed Bandwidth
BEGIN_TIME 24
0 48 48 68466 17 19 30008
1 35 35 47124 28 28 36478
2 30 30 123368 27 79 71458
3 35 35 46384 62 63 56072
4 67 67 67970 48 49 53965
5 37 37 65136 36 37 20594
6 54 54 139774 22 22 28616
7 9 9 54036 10 10 18306
8 20 20 47990 36 36 50175
9 59 59 77472 93 93 63737
10 51 51 85738 48 48 68261
11 32 32 45274 53 54 63142
12 12 12 47250 11 11 28454
13 29 29 104986 112 113 102539
14 53 53 80062 116 117 81462
15 27 27 70442 39 40 28563
16 12 12 38984 22 28 15963
17 30 30 18996 19 20 39960
18 19 19 15666 11 12 28227
19 35 35 17886 12 14 9909
20 32 32 35528 11 11 36692
21 33 33 51690 16 16 28009
22 42 42 65506 14 17 20645
23 75 75 129902 105 106 103052
END_TIME
# Domain - Pages - Hits - Bandwidth
# The 25 first Pages must be first (order not required for others)
BEGIN_DOMAIN 1
ip 876 876 1545630
END_DOMAIN
# Cluster ID - Pages - Hits - Bandwidth
BEGIN_CLUSTER 0
END_CLUSTER
# Login - Pages - Hits - Bandwidth - Last visit
# The 10 first Pages must be first (order not required for others)
BEGIN_LOGIN 0
END_LOGIN
# Robot ID - Hits - Bandwidth - Last visit - Hits on robots.txt
# The 25 first Hits must be first (order not required for others)
BEGIN_ROBOT 3
curl 288 905844 20161231211032 0
no_user_agent 37 75428 20161229025647 16
scanner 2 18012 20161217080005 0
END_ROBOT
# Worm ID - Hits - Bandwidth - Last visit
# The 5 first Hits must be first (order not required for others)
BEGIN_WORMS 0
END_WORMS
# EMail - Hits - Bandwidth - Last visit
# The 20 first Hits must be first (order not required for others)
BEGIN_EMAILSENDER 0
END_EMAILSENDER
# EMail - Hits - Bandwidth - Last visit
# The 20 first hits must be first (order not required for others)
BEGIN_EMAILRECEIVER 0
END_EMAILRECEIVER
# Files type - Hits - Bandwidth - Bandwidth without compression - Bandwidth after compression
BEGIN_FILETYPES 2
php 717 239760 0 0
html 159 1305870 0 0
END_FILETYPES
# Downloads - Hits - Bandwidth
BEGIN_DOWNLOADS 0
END_DOWNLOADS
# OS ID - Hits
BEGIN_OS ID - Hits - Pages 13
linuxandroid 2 2
winlong 644 644
winxp 8 8
winnt 12 12
win2000 15 15
linuxubuntu 1 1
win98 1 1
winvista 2 2
linux 16 16
win7 70 70
macosx 9 9
winunknown 2 2
Unknown 94 94
END_OS
# Browser ID - Hits - Pages
BEGIN_BROWSER 30
firefox28.0 1 1
msie6.0 4 4
firefox3.8 1 1
firefox3.6 1 1
firefox17.0 12 12
opera9.70 1 1
chrome38.0.2137.42 1 1
android 1 1
libwww 2 2
chrome41.0.2251.0 4 4
firefox12.0.1 2 2
firefox49.0 2 2
firefox46.0 2 2
firefox2.0.0.6 1 1
firefox2.0.0.7 1 1
firefox31.0 3 3
firefox47.0 1 1
msie8.0 57 57
nokia 1 1
firefox1.0.7 11 11
mozilla 2 2
netscape5.0 15 15
msie7.0 640 640
firefox3.6.28 1 1
chrome50.0.2661.102 4 4
firefox9.0.1 7 7
wget 12 12
chrome41.0.2228.0 7 7
msie9.0 1 1
Unknown 78 78
END_BROWSER
# Screen size - Hits
BEGIN_SCREENSIZE 0
END_SCREENSIZE
# Unknown referer OS - Last visit date
BEGIN_UNKNOWNREFERER 9
libwww-perl/6.15 20161222052704
NOKIA5700/_UCWEB7.0.2.37/28/999 20161224024353
Mozilla/5.0 20161229195309
()_{_:;_};_/bin/bash_-c_\ 20161216203216
Mozilla/5.0_Project_25499_(project25499.com) 20161209034154
Mozilla/5.0_zgrab/0.x 20161220211154
Mozilla/5.0_(compatible;_Nmap_Scripting_Engine;_http://nmap.org/book/nse.html) 20161213060054
WordPress/4.5.4;_http://freeharcore.com 20161231211033
Scanbot 20161230020718
END_UNKNOWNREFERER
# Unknown referer Browser - Last visit date
BEGIN_UNKNOWNREFERERBROWSER 5
()_{_:;_};_/bin/bash_-c_\ 20161216203216
DonutP;_Windows98SE 20161210172149
python-requests/2.7.0_CPython/2.7.9_Windows/2003Server 20161221025556
WordPress/4.5.4;_http://freeharcore.com 20161231211033
Scanbot 20161230020718
END_UNKNOWNREFERERBROWSER
# Origin - Pages - Hits
BEGIN_ORIGIN 6
From0 871 871
From1 2 2
From2 0 0
From3 1 1
From4 2 2
From5 0 0
END_ORIGIN
# Search engine referers ID - Pages - Hits
BEGIN_SEREFERRALS 0
END_SEREFERRALS
# External page referers - Pages - Hits
# The 25 first Pages must be first (order not required for others)
BEGIN_PAGEREFS 1
http://208.122.202.190 1 1
END_PAGEREFS
# Search keyphrases - Number of search
# The 10 first number of search must be first (order not required for others)
BEGIN_SEARCHWORDS 0
END_SEARCHWORDS
# Search keywords - Number of search
# The 25 first number of search must be first (order not required for others)
BEGIN_KEYWORDS 0
END_KEYWORDS
# Errors - Hits - Bandwidth
BEGIN_ERRORS 6
403 2 550
401 8 3728
405 299 12558
406 101 5454
301 55 0
404 251 62713
END_ERRORS
# URL with 404 errors - Hits - Last URL referer
BEGIN_SIDER_404 112
/export.txt 1 -
/magmi/ 4 -
/sip.txt 1 -
/admin/config.php 6 -
/recordings/LICENSE.txt 4 -
/check_proxy 6 -
/cielo/logs/transacao.log 1 -
/pbx.cfg 1 -
/cgi/common.cgi 12 -
/invoker/JMXInvokerServlet 1 -
/feed/ 2 -
/loja/pagamento.log 1 -
/stssys.htm 12 -
/sip.conf 1 -
/loja/logs/error.log 1 -
/proxyjudge.php 1 -
//MyAdmin/scripts/setup.php 1 -
/app/Mage.php 4 -
/loja/autorizacao.log 1 -
/scripts/setup.php 1 -
/password.cgi 1 -
/tz.php 1 -
/logs/error.log 1 -
/cielo/pages/requisicao.log 1 -
/cgi-bin/hello 2 -
/sap/hana/xs/wdisp/admin/ 1 -
/loja/xml.log 1 -
/cielo/pages/cielo.log 1 -
/loja/logs/transacao.log 1 -
//cgi-sys/realsignup.cgi 4 -
/axis-cgi/jpg/image.cgi 2 1
/vtigercrm/vtigerservice.php 1 -
/axis2 3 -
/sip1.txt 1 -
/cielo/pages/error.log 1 -
/cielo/logs/pagamento.log 1 -
/1001.txt 1 -
/pbx_cfg.cfg 1 -
/pbx_cfg.txt 1 -
/UD/act 4 -
/HNAP1/ 1 http://199.182.110.245/
/2jvf 1 -
/cielo/pages/log.log 1 -
/myadmin/scripts/setup.php 16 -
/logs/xml.log 1 -
/cielo/logs/cielo.log 1 -
/phpMyAdmin/scripts/setup.php 14 -
/export.php 1 -
/loja/logs/xml.log 1 -
/loja/transacao.log 1 -
/cgi-bin/test-cgi 2 -
/cielo/pages/transacao.log 1 -
//pma/scripts/setup.php 1 -
//phpmyadmin/scripts/setup.php 1 -
/cielo/logs/autorizacao.log 1 -
/l.php 1 -
/logs/pagamento.log 1 -
/login.action 1 -
/w00tw00t.at.blackhats.romanian.anti-sec:) 3 -
/cielo/pages/pagamento.log 1 -
/mysql/scripts/setup.php 1 -
/loja/logs/autorizacao.log 1 -
/cielo/pages/xml.log 1 -
/plugins/content/plugin_googlemap2_proxy.php 1 -
//cgi-bin/test-cgi 4 -
/MyAdmin/scripts/setup.php 1 -
/loja/logs/pagamento.log 1 -
/cielo/logs/error.log 1 -
/phpmyadmin/scripts/setup.php 5 -
/redirect.php 2 -
//admin/config.php 1 -
/logs/cielo.log 1 -
/muieblackcat 2 -
/echo.php 2 -
/sip.cfg 1 -
/cielo/logs/log.log 1 -
/logs/autorizacao.log 1 -
/user/soapCaller.bs 2 -
/loja/logs/log.log 1 -
//myadmin/scripts/setup.php 1 -
/account.cfg 1 -
/loja/requisicao.log 1 -
/loja/cielo.log 1 -
/phpMyAdmin 1 http://199.182.110.245/phpMyAdmin
/logs/requisicao.log 1 -
/a2billing/customer/templates/default/header.tpl 1 -
/7jas 1 -
/sip1.conf 1 -
/loja/log.log 1 -
/logs/transacao.log 1 -
/command.php 12 -
/401.txt 1 -
/cielo/logs/requisicao.log 1 -
/cielo/pages/autorizacao.log 1 -
//recordings/LICENSE.txt 1 -
//a2billing/customer/templates/default/header.tpl 1 -
/plugins/system/plugin_googlemap2/plugin_googlemap2_proxy.php 1 -
/cgi-bin//hello 5 -
/pma/scripts/setup.php 16 -
/manager/html 12 -
/u.php 1 -
/phpmyadmin 1 http://208.122.202.190/phpmyadmin
/loja/error.log 1 -
/logs/log.log 1 -
//phpMyAdmin/scripts/setup.php 2 -
/plugins/system/plugin_googlemap2_proxy.php 1 -
/loja/logs/cielo.log 1 -
/cgi-bin/test.cgi 1 -
/phpmyadmin/index.php 1 http://208.122.202.190/phpmyadmin/index.php
/loja/logs/requisicao.log 1 -
/cielo/logs/xml.log 1 -
/skin/adminhtml/ 4 -
END_SIDER_404
# Host - Pages - Hits - Bandwidth - Last visit date - [Start date of last visit] - [Last page of last visit]
# [Start date of last visit] and [Last page of last visit] are saved only if session is not finished
# The 25 first Hits must be first (order not required for others)
BEGIN_VISITOR 188
208.122.202.190 65 65 0 20161231211033
51.15.49.153 62 62 22940 20161213064907
51.15.41.149 54 54 19980 20161213065659
51.15.45.50 40 40 14800 20161213061404
51.15.40.89 36 36 13320 20161213065913
163.172.191.57 35 35 12950 20161222101622
51.15.50.239 35 35 12950 20161213061131
163.172.184.155 30 30 11100 20161210041108
163.172.178.196 29 29 10730 20161205001019
51.15.43.191 28 28 10360 20161213043710
51.15.36.208 24 24 8880 20161213064715
51.15.55.212 24 24 8880 20161209192442
163.172.190.79 17 17 6290 20161222124906
163.172.175.117 16 16 5920 20161210135436
51.15.54.1 15 15 5550 20161205115213
51.15.51.107 13 13 4810 20161213004706
195.154.42.164 12 12 0 20161216091435
51.15.52.223 12 12 4440 20161213050415
163.172.188.60 11 11 4070 20161205115324
51.15.49.29 10 10 3700 20161214045215
62.80.182.198 9 9 3330 20161214130224
51.15.44.227 9 9 3330 20161213040433
51.15.50.207 9 9 3330 20161205100430
163.172.137.229 8 8 2960 20161210020846
185.110.132.231 8 8 72048 20161230020718
54.201.243.93 1 1 9006 20161207070206
163.172.164.196 6 6 2220 20161214040353
212.129.62.79 5 5 45030 20161226095817
128.232.110.28 2 2 18012 20161203130308
23.247.27.4 1 1 9006 20161218011826
176.32.15.44 1 1 9006 20161217073526
23.247.72.18 1 1 9006 20161205045504
23.247.8.178 1 1 9006 20161230235831
51.15.48.31 3 3 1110 20161209145952
51.15.55.253 1 1 370 20161218050209
139.162.13.205 4 4 36024 20161229195309
51.15.49.32 2 2 740 20161216105456
52.199.241.129 1 1 9006 20161215023550
189.121.177.175 1 1 9006 20161210235626
173.208.207.130 1 1 9006 20161216150408
180.97.215.167 1 1 9006 20161220220308
66.240.219.146 1 1 9006 20161203002533
23.247.88.27 1 1 9006 20161221225627
51.15.50.100 2 2 740 20161211144152
163.172.149.250 1 1 370 20161214113131
89.248.167.131 2 2 18012 20161225223430
195.154.41.132 6 6 54036 20161226095818
51.15.49.253 1 1 370 20161203142543
23.247.72.27 1 1 9006 20161206134517
51.15.37.127 1 1 370 20161215101825
104.148.75.58 1 1 9006 20161205121651
23.247.27.2 1 1 9006 20161223104513
163.172.165.34 1 1 370 20161215142555
23.247.72.35 1 1 9006 20161217223315
163.172.166.70 2 2 740 20161214112446
23.247.27.34 1 1 9006 20161231000051
23.247.72.115 1 1 9006 20161230230223
163.172.172.247 2 2 740 20161213232242
155.94.224.195 2 2 18012 20161218145015
51.15.53.104 1 1 370 20161215101714
69.30.193.250 1 1 9006 20161216163340
27.198.12.2 2 2 18012 20161216203216
51.15.53.220 1 1 370 20161205141945
51.15.53.159 3 3 1110 20161214040809
51.15.52.24 2 2 740 20161214103841
163.172.146.198 4 4 1480 20161204025908
23.247.72.106 1 1 9006 20161230230906
23.247.27.67 1 1 9006 20161216081846
195.154.214.162 1 1 9006 20161221094437
46.227.137.199 1 1 9006 20161229040933
163.172.177.19 4 4 1480 20161204141140
104.148.75.2 1 1 9006 20161205072947
23.152.0.179 1 1 9006 20161216040108
23.247.27.59 1 1 9006 20161215100107
115.231.222.145 2 2 18012 20161221025556
98.143.148.107 2 2 18012 20161209034154
182.118.55.233 1 1 9006 20161231130704
51.15.48.74 1 1 370 20161213230634
69.30.226.221 1 1 9006 20161216143656
79.151.233.12 2 2 0 20161211062537
177.33.241.221 1 1 9006 20161216024304
104.148.75.67 2 2 18012 20161221174313
23.247.72.59 1 1 9006 20161218001519
23.247.72.66 1 1 9006 20161221204353
163.172.167.232 2 2 740 20161214111919
185.11.146.220 1 1 9006 20161220215705
51.15.52.36 2 2 740 20161205115303
23.247.72.10 1 1 9006 20161217035943
51.15.51.33 1 1 370 20161204232818
51.15.53.51 3 3 1110 20161214040504
185.100.87.191 1 1 0 20161213053110
106.39.60.187 2 2 18012 20161224024354
104.148.75.27 1 1 9006 20161206103157
162.220.8.247 1 1 9006 20161230132737
109.201.152.9 1 1 9006 20161209234658
163.172.152.93 1 1 370 20161205115212
51.15.55.198 2 2 740 20161209091257
104.148.75.74 1 1 9006 20161221132137
23.247.5.25 3 3 27018 20161231020742
163.172.171.222 5 5 1850 20161227081910
163.172.67.30 1 1 9006 20161222052704
23.247.88.99 1 1 9006 20161205125132
23.247.72.75 1 1 9006 20161217064615
163.172.185.145 4 4 1480 20161214040939
163.172.189.153 1 1 370 20161204232544
104.148.75.42 1 1 9006 20161217064721
23.247.27.19 1 1 9006 20161218004525
23.247.72.2 1 1 9006 20161215095344
208.100.26.230 1 1 0 20161213060054
93.174.93.218 1 1 9006 20161204233206
163.172.140.190 2 2 740 20161213230822
182.118.60.15 1 1 9006 20161231150525
144.76.199.41 1 1 370 20161225150653
51.15.37.156 2 2 740 20161204041658
50.30.32.186 1 1 9006 20161208213720
201.52.182.68 1 1 9006 20161216083216
142.54.174.84 1 1 9006 20161216165236
104.148.75.106 1 1 9006 20161221132440
54.64.91.93 2 2 18012 20161215230705
191.178.0.73 1 1 9006 20161221054030
51.15.54.4 2 2 740 20161207112658
54.229.63.251 1 1 9006 20161220050939
51.15.53.68 4 4 1480 20161209230021
23.247.72.83 1 1 9006 20161223151212
23.247.88.98 1 1 9006 20161206110544
64.16.214.12 2 2 0 20161217012449
23.247.88.123 1 1 9006 20161217022153
177.143.192.216 1 1 9006 20161222013125
23.247.8.114 1 1 9006 20161223153057
70.21.253.45 1 1 9006 20161217114226
163.172.189.70 6 6 2220 20161204142027
212.47.233.76 2 2 740 20161215142900
104.148.75.4 1 1 9006 20161217015327
54.169.56.209 1 1 9006 20161220032930
51.15.49.150 2 2 740 20161214111841
163.172.190.63 2 2 740 20161222031348
23.247.88.58 1 1 9006 20161221150146
179.211.95.127 1 1 9006 20161230233723
54.167.70.34 1 1 9006 20161210224145
51.15.51.128 2 2 740 20161215140732
189.122.139.108 1 1 9006 20161211042535
189.100.71.238 1 1 9006 20161227182247
23.247.88.83 1 1 9006 20161216141829
23.247.88.122 1 1 9006 20161206133355
51.15.51.193 7 7 2590 20161210031202
71.6.158.166 1 1 9006 20161224065753
182.118.53.97 1 1 9006 20161231142238
23.247.88.26 1 1 9006 20161221145429
179.209.182.57 1 1 9006 20161201100500
163.172.190.150 1 1 370 20161218050250
195.2.252.130 1 1 9006 20161221063207
163.172.157.146 1 1 370 20161222034556
60.191.38.77 1 1 9006 20161226060331
104.148.75.10 1 1 9006 20161216074351
186.223.22.161 1 1 9006 20161206113247
104.148.75.52 1 1 9006 20161217084300
51.15.45.46 2 2 740 20161213232231
23.247.27.12 1 1 9006 20161216164836
54.246.130.213 1 1 9006 20161207085353
213.242.219.109 2 2 740 20161210042230
182.118.53.227 1 1 9006 20161231131046
104.148.75.66 2 2 18012 20161218020109
51.15.45.107 5 5 1850 20161204233112
23.247.8.10 1 1 9006 20161223102053
23.247.72.12 1 1 9006 20161205041601
52.199.224.226 2 2 18012 20161220211154
198.16.54.114 1 1 9006 20161205013614
59.120.60.91 1 1 9006 20161222131033
104.148.75.68 1 1 9006 20161217105301
51.15.50.231 8 8 2960 20161205094558
71.6.165.200 1 1 9006 20161209023822
108.175.3.200 2 2 18012 20161214130418
23.247.72.26 1 1 9006 20161217105228
187.23.176.71 1 1 9006 20161226121022
23.247.27.74 1 1 9006 20161204232139
51.15.50.219 1 1 370 20161205141904
198.20.69.74 2 2 18012 20161213021636
51.15.54.115 4 4 1480 20161204141826
51.15.55.163 1 1 370 20161205142610
212.92.127.201 2 2 18012 20161210022244
51.15.41.26 1 1 370 20161215140751
177.64.152.50 1 1 9006 20161205083220
104.148.75.3 2 2 18012 20161216143549
51.15.53.239 2 2 740 20161215142542
51.15.49.133 2 2 740 20161209142935
163.172.130.28 1 1 370 20161214111733
104.148.75.123 1 1 9006 20161218020417
23.247.88.35 1 1 9006 20161216125624
END_VISITOR
# Date - Pages - Hits - Bandwidth - Visits
BEGIN_DAY 31
20161201 5 5 9376 5
20161202 2 2 0 2
20161203 9 9 37134 9
20161204 57 57 46258 20
20161205 61 61 108560 20
20161206 9 9 54036 9
20161207 11 11 29238 10
20161208 5 5 9746 5
20161209 85 85 56618 23
20161210 30 30 33678 15
20161211 9 9 10856 8
20161212 141 141 76228 26
20161213 197 197 80046 28
20161214 35 35 29482 16
20161215 18 18 57736 15
20161216 32 32 216884 23
20161217 14 14 99066 14
20161218 12 12 72788 11
20161219 2 2 0 2
20161220 9 9 63042 9
20161221 36 36 107576 17
20161222 40 40 39968 14
20161223 8 8 54036 7
20161224 5 5 36024 4
20161225 5 5 9376 5
20161226 10 10 54036 6
20161227 5 5 9746 4
20161228 1 1 0 1
20161229 6 6 27018 6
20161230 9 9 63042 9
20161231 8 8 54036 8
END_DAY
# Session range - Number of visits
BEGIN_SESSION 7
1h+ 25
5mn-15mn 12
2mn-5mn 7
30s-2mn 11
15mn-30mn 14
0s-30s 261
30mn-1h 21
END_SESSION
# URL - Pages - Bandwidth - Entry - Exit
# The 25 first Pages must be first (order not required for others)
BEGIN_SIDER 5
/xmlrpc.php 648 239760 147 147
/ 155 1305870 141 137
/wp-cron.php 65 0 63 63
/wp-login.php 4 0 0 0
/wp-content/ 4 0 0 4
END_SIDER