centos.org
The CentOS Project

 The CentOS Project

Technical Rating

 XSS attack - not protected. HTTP header "X-XSS-Protection" not found

 User Interface redress attack - not protected. HTTP header "X-Frame-Options" not found

 HTTP request response - 200

 HTTPS request response - 200

 Redirect from HTTP to HTTPS

iHTTP redirect: https://www.centos.org/

 Server response time 0,653 sec

 HTML load time 0,502 sec

iHTML length: 26281

 A link to a favicon is specified

iNumber of IMGs: 73

!The ALT attribute is not set for all IMGs

 Adapted for mobile devices. It uses the VIEWPORT tag

!W3C Validation. Number of HTML errors: 87

!Doesn't use robots.txt

!Doesn't use a sitemap

 DNS MX record is available. Anti-spam DMARC and ADSP records are available

Exact physical location of Centos.org

iNL Staten Bolwerk 1

1, Staten Bolwerk, Haarlem, Noord-Holland, Nederland, 2011MK, Nederland

Technical Information

iServer: Apache/2.4.37 (centos) OpenSSL/1.1.1g

iCentos.org created 21 year(s) 2 month(s) 26 day(s) ago (2003-12-04)

iRegistration period ends in (2021-12-04)

iCentos.org is registered in the NOM-IQ LTD. DBA COM LAUDE

iCentos.org registered to Red Hat, Inc.

iСontacts: [email protected]

iNameservers: NS1.CENTOS.ORG,   NS3.CENTOS.ORG,   NS4.CENTOS.ORG

iIPv4: 81.171.33.202,   35.178.203.231,   81.171.33.201

iIPv6: 2001:4de0:aaae::201,   2001:4de0:aaae::202,   2a05:d01c:c6a:cc02:e4d3:88b0:60da:6fb4

iDNS TXT Records: "v=spf1 mx ip4:208.100.23.70 ip6:2607:f128:40:1600:225:90ff:fe00:bf20 ip4:176.67.173.46 ip6:2a02:2498:1:3d:21d:9ff:fe65:aedd ip4:164.177.170.49 ip4:85.214.222.242 ip4:50.28.24.115 ip4:85.13.208.9 ip6:2a01:c0:2:4:0:55ff:fe0d:d009 ip4:85.13.226.35 " "ip6:2a01:c0:2:4:92b1:1cff:fe49:2995 ip4:8.43.84.199 -all"
"libera-1239sd9"
"google-site-verification=xFWz31gRBrIYS5zOQLeT6oY88Z2UPuW031lo3iGaXBI"

iDNS Mail Records: 10 mail.centos.org.

iDMARC Mail Anti Spam Records: 81.171.33.202,   35.178.203.231,   81.171.33.201

iAuthor Domain Signing Practices Mail Records: 81.171.33.201,   81.171.33.202,   35.178.203.231

iDNS Certification Authority Authorization Records: 0 issue "digicert.com",   0 issuewild "digicert.com",   0 issue "letsencrypt.org",   0 issue "amazon.com",   0 issuewild "letsencrypt.org"

iRaw DNS Information

A: 81.171.33.202
A: 35.178.203.231
A: 81.171.33.201

AAAA: 2001:4de0:aaae::201
AAAA: 2001:4de0:aaae::202
AAAA: 2a05:d01c:c6a:cc02:e4d3:88b0:60da:6fb4

TXT: "v=spf1 mx ip4:208.100.23.70 ip6:2607:f128:40:1600:225:90ff:fe00:bf20 ip4:176.67.173.46 ip6:2a02:2498:1:3d:21d:9ff:fe65:aedd ip4:164.177.170.49 ip4:85.214.222.242 ip4:50.28.24.115 ip4:85.13.208.9 ip6:2a01:c0:2:4:0:55ff:fe0d:d009 ip4:85.13.226.35 " "ip6:2a01:c0:2:4:92b1:1cff:fe49:2995 ip4:8.43.84.199 -all"
TXT: "libera-1239sd9"
TXT: "google-site-verification=xFWz31gRBrIYS5zOQLeT6oY88Z2UPuW031lo3iGaXBI"

MX: 10 mail.centos.org.

DMARC: 81.171.33.202
DMARC: 35.178.203.231
DMARC: 81.171.33.201

ADSP: 81.171.33.201
ADSP: 81.171.33.202
ADSP: 35.178.203.231
CAA: 0 issue "digicert.com"
CAA: 0 issuewild "digicert.com"
CAA: 0 issue "letsencrypt.org"
CAA: 0 issue "amazon.com"
CAA: 0 issuewild "letsencrypt.org"

The popularity of the site

iHow many links to Centos.org on the Internet: 260990