dx.doi.org
Resolve a DOI Name
dx.doi.org is registered with Cloudflare, Inc. since January 19, 1999 (27.8 years). The registration expires on January 19, 2035. The site runs on Cloudflare, jsDelivr, Font Awesome and 3 other technologies. Its email security grade is D. Its SSL certificate is issued by Google Trust Services and is valid for 33 more days.
- Domain age
- 27.8 yrs
- Technologies
- 6
- Email security
- D
- SSL days left
- 33
Registration
| Registrar | Cloudflare, Inc. |
|---|---|
| IANA ID | 1910 |
| Registered | January 19, 1999 |
| Expires | January 19, 2035 |
| Updated | August 12, 2026 |
| Status | client transfer prohibited |
| Name servers | josh.ns.cloudflare.com, zita.ns.cloudflare.com |
| DNSSEC | Signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 104.26.4.132 | 28 |
| A | 104.26.5.132 | 28 |
| A | 172.67.69.3 | 28 |
| AAAA | 2606:4700:20::681a:484 | 171 |
| AAAA | 2606:4700:20::681a:584 | 171 |
| AAAA | 2606:4700:20::ac43:4503 | 171 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WE1, Google Trust Services |
| Expires | December 13, 2026 |
| Days remaining | 33 |
| Protocol | TLSv1.3 |
| Names | doi.org, *.doi.org |
Email security
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- 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 policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
- goodDMARC aggregate reports are sent to mailto:[email protected].
- good3 MX record(s) found. Mail is handled by Zoho Mail.
Homepage metadata
| Title | Resolve a DOI Name |
|---|---|
| Language | en-us |
| Indexable | Yes |
| Word count | 153 |
About dx.doi.org
Who is the registrar of dx.doi.org?
dx.doi.org is registered with Cloudflare, Inc. (IANA ID 1910).
When does dx.doi.org expire?
The current registration of dx.doi.org expires on January 19, 2035. It was first registered on January 19, 1999.
What technology does dx.doi.org use?
We detected 6 technologies on dx.doi.org, including Cloudflare, jsDelivr, Font Awesome, Google Fonts, HSTS, Bootstrap.
Does dx.doi.org protect its email with SPF and DMARC?
dx.doi.org scores 62/100 (grade D) for email security. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.