openstax.org
OpenStax
openstax.org is registered with GoDaddy.com, LLC since September 28, 2011 (15.1 years). The registration expires on September 28, 2032. The site runs on Crazy Egg, Amazon CloudFront, Amazon S3. Its email security grade is D. Its SSL certificate is issued by Amazon and is valid for 139 more days.
- Domain age
- 15.1 yrs
- Technologies
- 3
- Email security
- D
- SSL days left
- 139
Registration
| Registrar | GoDaddy.com, LLC |
|---|---|
| IANA ID | 146 |
| Registered | September 28, 2011 |
| Expires | September 28, 2032 |
| Updated | August 12, 2026 |
| Status | client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited |
| Name servers | ns-1195.awsdns-21.org, ns-2027.awsdns-61.co.uk, ns-358.awsdns-44.com, ns-602.awsdns-11.net |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 65.9.130.71 | 60 |
| A | 65.9.130.21 | 60 |
| A | 65.9.130.32 | 60 |
| A | 65.9.130.88 | 60 |
| MX | aspmx.l.google.com 10 | 3600 |
| MX | alt1.aspmx.l.google.com 20 | 3600 |
| MX | alt2.aspmx.l.google.com 20 | 3600 |
| MX | aspmx2.googlemail.com 30 | 3600 |
| MX | aspmx3.googlemail.com 30 | 3600 |
| MX | aspmx4.googlemail.com 30 | 3600 |
| MX | aspmx5.googlemail.com 30 | 3600 |
| NS | ns-1195.awsdns-21.org | 172800 |
| NS | ns-2027.awsdns-61.co.uk | 172800 |
| NS | ns-358.awsdns-44.com | 172800 |
| NS | ns-602.awsdns-11.net | 172800 |
| TXT | 1password-site-verification=USDQ5N76BVCB5CXXBSZ34POROQ | 3600 |
| TXT | MS=ms58383868 | 3600 |
| TXT | anthropic-domain-verification-ewhe7h=S2BgAeCil3ayY972YJsaqRznM | 3600 |
| TXT | atlassian-domain-verification=IeWskTgDRHjMBD/AeaXlwcXbCXDdoqiNm6hPjtGUaSoBr/4xG7gqEm9788fEzLyZ | 3600 |
| TXT | facebook-domain-verification=qehn0rayh30a1mrjbmt6ncx7lf6evi | 3600 |
| TXT | google-site-verification=5P1KHg2sIon0NiYhjrIxuLk_EZtd2bdHOJwMh9DcyFc | 3600 |
| TXT | google-site-verification=h-yRpYjInlbkB3Sngplfqbq70q0CYVvoJ-w1070hHOM | 3600 |
| TXT | google-site-verification=kU898HQbWPBk88hCzxxput41Du008GyrmHuZ_0tu-XU | 3600 |
| TXT | ij7237pjdbunduigm3aog31coa | 3600 |
| TXT | pardot218812=cad18a59f84a76dac099a1090cfe14fb86bfda2f2f3b1049d3ca49550886ddb7 | 3600 |
| TXT | v=spf1 include:_spf.google.com include:amazonses.com include:spf1.formassembly.com include:_spf.salesforce.com include:aspmx.pardot.com ~all | 3600 |
| TXT | zapier-domain-verification-challenge=59ee21a1-c3d3-4c41-81c0-a6cffde575a5 | 3600 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 M04, Amazon |
| Expires | March 29, 2027 |
| Days remaining | 139 |
| Protocol | TLSv1.3 |
| Names | openstax.org, *.openstax.org |
Email security
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: google).
- good7 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | OpenStax |
|---|---|
| Description | OpenStax offers free college textbooks for all types of students, making education accessible & affordable for everyone. Browse our list of available subjects! |
| Language | en-US |
| Indexable | Yes |
| Word count | 0 |
About openstax.org
Who is the registrar of openstax.org?
openstax.org is registered with GoDaddy.com, LLC (IANA ID 146).
When does openstax.org expire?
The current registration of openstax.org expires on September 28, 2032. It was first registered on September 28, 2011.
What technology does openstax.org use?
We detected 3 technologies on openstax.org, including Crazy Egg, Amazon CloudFront, Amazon S3.
Does openstax.org protect its email with SPF and DMARC?
openstax.org scores 63/100 (grade D) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of openstax.org?
openstax.org uses ns-1195.awsdns-21.org, ns-2027.awsdns-61.co.uk, ns-358.awsdns-44.com, ns-602.awsdns-11.net.