Rank #7,190Updated November 10, 2026
siu.edu
Southern Illinois University
The site runs on Universal Analytics, cdnjs, Font Awesome and 9 other technologies. Its email security grade is C. Its SSL certificate is issued by Internet2 and is valid for 58 more days.
- Domain age
- —
- Technologies
- 12
- Email security
- C
- SSL days left
- 58
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 131.230.21.130 | 3600 |
| MX | siu-edu.mail.protection.outlook.com 0 | 3600 |
| NS | ns1.siu.edu | 3600 |
| NS | ns3.siu.edu | 3600 |
| NS | ns4.siu.edu | 3600 |
| NS | ns5.siu.edu | 3600 |
| TXT | e2ma-verification=702eb | 1800 |
| TXT | v=spf1 a mx ip4:131.230.0.0/16 include:spf.protection.outlook.com include:sendgrid.net include:a._spf.brightspace.com ~all | 1800 |
| TXT | MS=ms20230666 | 1800 |
| TXT | adobe-idp-site-verification=8e699fe7391a61d469bd007a3295c397905fb566b98db27d355d3483eac0a86e | 1800 |
| TXT | apple-domain-verification=wLe0m12b2Z4EunYa | 1800 |
| TXT | HoxTnhzvBYZ82oYiTjotA/8BUKC/NJEHjQL5Yvtwo15uaVyH+vsDHa5xmjKxnwtDtJloUn2AHIlLstIoCDWMLg== | 1800 |
| TXT | apple-domain-verification=UWcwBIUNhBK-htVraea_MSmuyduELwRhhWx2MFJw2OE | 1800 |
| TXT | e2ma-verification=19bbb | 1800 |
Technology stack
Analytics
CDN
Programming language
Tag manager
UI framework
Video
Web server
Analytics and advertising IDs
google_analytics:UA-11879925-1google_analytics:UA-64265249-1google_tag_manager:GTM-5DGK6FZSSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, InCommon RSA Server CA 2, Internet2 |
| Expires | January 8, 2027 |
| Days remaining | 58 |
| Protocol | TLSv1.3 |
| Names | siu.edu, *.asa.siu.edu, *.aviation.siu.edu, *.business.siu.edu, *.it.siu.edu, *.lib.siu.edu, *.oit.siu.edu, *.rso.siu.edu, *.siu.edu, *.siuc.edu, *.siuf.org, *.web.siu.edu |
Email security
CScore 79/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- 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.
- 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], mailto:[email protected].
- goodDKIM keys found (selector: selector1, k2).
- good1 MX record(s) found. Mail is handled by Microsoft 365.
- goodBIMI record found: supporting inboxes can show your brand logo.
Homepage metadata
| Title | Southern Illinois University |
|---|---|
| Description | Southern Illinois University is the right place for your college experience: in Carbondale, Illinois, SIU offers everything you need, plus extras that inspire. |
| Language | en |
| Indexable | Yes |
| Word count | 390 |
About siu.edu
What technology does siu.edu use?
We detected 12 technologies on siu.edu, including Universal Analytics, cdnjs, Font Awesome, Google Fonts, jQuery, Swiper.
Does siu.edu protect its email with SPF and DMARC?
siu.edu scores 79/100 (grade C) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.
What are the name servers of siu.edu?
siu.edu uses ns1.siu.edu, ns3.siu.edu, ns4.siu.edu, ns5.siu.edu.