mrbool.com
Free Online Courses for Software Developers - MrBool

 MrBool is a website made for software developers. Our articles and courses are totally free with focus on useful techniques and best practices.

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 - 403

!No Redirect from HTTP to HTTPS

 Server response time 0,886 sec

 HTML load time 1,405 sec

iHTML length: 32382

 A link to a favicon is specified

iNumber of IMGs: 5

!The ALT attribute is not set for all IMGs

 Adapted for mobile devices. It uses the VIEWPORT tag

!W3C Validation. Number of HTML errors: 38

 W3C Validation. Number of HTML warnings: 8

 Uses robots.txt

 Uses sitemap

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

Exact physical location of Mrbool.com

iBR

Brasil

Technical Information

iServer: Microsoft-IIS/7.5

iMrbool.com created 18 year(s) 8 month(s) 4 day(s) ago (2006-06-28)

iRegistration period ends in 1 year(s) 4 month(s) 5 day(s) (2026-06-28)

iMrbool.com is registered in the GODADDY.COM, LLC

iMrbool.com registered to Devmedia Editora Comunicacao e Design Ltda

iСontacts: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=mrbool.com

iNameservers: NS1.PORTA80.COM.BR,   NS2.PORTA80.COM.BR,   NS3.PORTA80.COM.BR

iIPv4: 187.85.72.165

iDNS TXT Records: "v=spf1 a mx ip4:187.85.72.164/30 ?all"

iDNS Mail Records: 10 mail.mrbool.com.

iDMARC Mail Anti Spam Records: 187.85.72.165

iAuthor Domain Signing Practices Mail Records: 187.85.72.165

iRaw DNS Information

A: 187.85.72.165

TXT: "v=spf1 a mx ip4:187.85.72.164/30 ?all"

MX: 10 mail.mrbool.com.

DMARC: 187.85.72.165

ADSP: 187.85.72.165

The popularity of the site

iHow many links to Mrbool.com on the Internet: 567