edstem.org
Ed — Digital Learning Platform

!No H1 Tag

Ed is the next generation digital learning platform that redefines collaboration, communication, and computational thinking

No Keywords

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://edstem.org/

Server response time 0,678 sec

HTML load time 0,49 sec

iHTML length: 12918

!Favicon link not found

iNumber of IMGs: 0

Adapted for mobile devices. It uses the VIEWPORT tag

W3C Validation. Number of HTML errors: 1

W3C Validation. Number of HTML warnings: 1

!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 Edstem.org

iUS San Francisco 101 Townsend Street

101, Townsend Street, South Beach, San Francisco, San Francisco City and County, San Francisco, California, 94017, United States

Technical Information

iServer: cloudflare

iEdstem.org created 7 year(s) 7 month(s) 5 day(s) ago (2017-07-24)

iRegistration period ends in (2021-07-24)

iEdstem.org is registered in the CLOUDFLARE, INC.

iEdstem.org registered to DATA REDACTED

iСontacts: [email protected]

iNameservers: RAY.NS.CLOUDFLARE.COM, ELLE.NS.CLOUDFLARE.COM

iIPv4: 104.22.7.90, 172.67.40.152, 104.22.6.90

iIPv6: 2606:4700:10::ac43:2898, 2606:4700:10::6816:75a, 2606:4700:10::6816:65a

iDNS TXT Records: "v=spf1 a mx ip4:69.169.239.74 include:mailgun.org include:amazonses.com ~all"
"google-site-verification=Gjzpt1cv8phfBej7mHim2QR-LusfRx_1eQPWjdjzABw"

iDNS Mail Records: 10 mxa.mailgun.org., 10 mxb.mailgun.org.

iDMARC Mail Anti Spam Records: 104.22.7.90, 172.67.40.152, 104.22.6.90

iAuthor Domain Signing Practices Mail Records: 172.67.40.152, 104.22.7.90, 104.22.6.90

iRaw DNS Information

A: 104.22.7.90
A: 172.67.40.152
A: 104.22.6.90

AAAA: 2606:4700:10::ac43:2898
AAAA: 2606:4700:10::6816:75a
AAAA: 2606:4700:10::6816:65a

TXT: "v=spf1 a mx ip4:69.169.239.74 include:mailgun.org include:amazonses.com ~all"
TXT: "google-site-verification=Gjzpt1cv8phfBej7mHim2QR-LusfRx_1eQPWjdjzABw"

MX: 10 mxa.mailgun.org.
MX: 10 mxb.mailgun.org.

DMARC: 104.22.7.90
DMARC: 172.67.40.152
DMARC: 104.22.6.90

ADSP: 172.67.40.152
ADSP: 104.22.7.90
ADSP: 104.22.6.90