blackboard.com
Its Domain Power Rank is relatively high.
- Global Rank
- #11,944
▼ 1,793
- Rank in TLD
- #5,674
▼ 819
- Referring Domains
- 4,454
▲ 11
- Avg. Referrer Power Rank
- 34.2
- Subdomains
- 806
- Domain age
- 27 yr 6 mo
Link Overview
- Avg. Referrer Power Rank
- 34.2
- Median Referrer Power Rank
- 33.2
- Referring Domains
- 4,454
- Linked Domains
- 437
Referring Domains by Power Rank
0–9 445
10–19 794
20–29 746
30–39 681
40–49 772
50–59 567
60–69 290
70–79 119
80–89 32
90–100 8
Total 4,454
Referring Domains
| Referring domain | Power Rank | Global Rank |
|---|---|---|
| google.com | 99.8 | #1 |
| github.com | 93.6 | #19 |
| apple.com | 93.5 | #22 |
| microsoft.com | 91.9 | #33 |
| wikipedia.org | 91.8 | #34 |
| amazon.com | 90.8 | #40 |
| adobe.com | 90.7 | #43 |
| squarespace.com | 90.3 | #46 |
| mozilla.org | 89.8 | #52 |
| creativecommons.org | 88.0 | #76 |
Basic Information
- TLD
- .com
- Registration date
- 9 Apr 1999
- Last updated
- 17 Sept 2025
- Expires
- 15 Jul 2027 (252 days remaining)
- Domain statuses
- clientTransferProhibited serverDeleteProhibited serverTransferProhibited serverUpdateProhibited
- Registry
- VeriSign Global Registry Services
- Registrar
- CSC Corporate Domains, Inc.
Subdomain
21days.blackboard.comaamu.blackboard.comaapc.blackboard.comaarhus.blackboard.comabdn.blackboard.comaccess.blackboard.comacg.blackboard.comactx.blackboard.comadams9-1.blackboard.comadultedgo.blackboard.comafaqleadership.blackboard.comafr.blackboard.comafsoc.blackboard.comait.blackboard.comalaqsa.blackboard.comalaska-testmig.blackboard.comalbanytech.blackboard.comaldhaid.blackboard.comalghad.blackboard.comallencc.blackboard.com
DNS
| Type | Name | TTL | Value |
|---|---|---|---|
| A | blackboard.com | 300 | 20.85.72.68 |
| MX | blackboard.com | 300 | 10 blackboard-com.mail.protection.outlook.com |
| NS | blackboard.com | 169481 | ns-337.awsdns-42.com |
| NS | blackboard.com | 169481 | ns-719.awsdns-25.net |
| NS | blackboard.com | 169481 | ns-1321.awsdns-37.org |
| NS | blackboard.com | 169481 | ns-1824.awsdns-36.co.uk |
| SOA | blackboard.com | 900 | ns-719.awsdns-25.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400 |
| TXT | blackboard.com | 300 | MS=ms40613892 |
| TXT | blackboard.com | 300 | rightscale-4938059c848a09deb829 |
| TXT | blackboard.com | 300 | ca3-48cd68e33ded47618c454c158fa7dcaf |
| TXT | blackboard.com | 300 | docu-45723426-bedd-41e0-a6f0-664931fc3806 |
| TXT | blackboard.com | 300 | pendo-domain-verification=FE01BPYS0j6wN6LxPvTC9D6eafM |
| TXT | blackboard.com | 300 | knowbe4-site-verification=6c64415971489aeacebf8f29cb7abe0b |
| TXT | blackboard.com | 300 | mixpanel-domain-verify=92235a82-8728-4950-9851-57c4eecd4342 |
| TXT | blackboard.com | 300 | teamviewer-sso-verification=b64de8134cf8452ab2741aeae7c50b17 |
| TXT | blackboard.com | 300 | anthropic-domain-verification-48rh2p=nzud9NjNPq281qzpTWE5ucyiZ |
| TXT | blackboard.com | 300 | slack-domain-verification=sLH7O6zyRtYfRHsoN0px0eCS2i6cde4iq2oEhHKC |
| TXT | blackboard.com | 300 | google-site-verification=fTocuU2OdTBoe0z0NgNx_LFAThArXIONtFHyO--shKk |
| TXT | blackboard.com | 300 | google-site-verification=h4SDO4a-PJNaavz2JFzCHiOqtvcVJG-r2SSOSwVnZcw |
| TXT | blackboard.com | 300 | AVALARA-SAML-DOMAIN=648693141E347999F81FDF0C5CC87650FC60B3FAD1370A2F81A4890F6DCE |
| TXT | blackboard.com | 300 | AVALARA-SAML-DOMAIN=F1165634FB18F64C743A6C9FE2254C4958D00D11F0684C1AFB860E96DFAD |
| TXT | blackboard.com | 300 | pfXrSz+R3xXW/7frt70I2B9I5Ji3XNr+ndfiptWw0SwRIwJT1lzgMyka1en34swjl1jIwlBlvCnBBnb4zI+5bA== |
| TXT | blackboard.com | 300 | wiz-domain-verification=f2232774b0adf1fc08b8c0f3fd5cb5f261d73c37f381e65ec1d6b4c26b9b6a0b |
| TXT | blackboard.com | 300 | atlassian-domain-verification=sL0SeJrvzBUml3o/s27o80sReunbCTKElGcidHph2tiTaZ0nMg7YECa/wuQooaq/ |
| TXT | blackboard.com | 300 | v=spf1 include:_netblocks.blackboard.com include:mh.blackboard.com include:spf.protection.outlook.com include:eskerondemand.com include:49675397.spf08.hubspotemail.net include:_spf.salesforce.com include:service-now.com -all |
| CAA | blackboard.com | 300 | 128 iodef "mailto:dnstech@blackboard.com" |
| CAA | blackboard.com | 300 | 128 issue "amazon.com" |
| CAA | blackboard.com | 300 | 128 issue "digicert.com" |
| CAA | blackboard.com | 300 | 128 issue "letsencrypt.org" |
| CAA | blackboard.com | 300 | 128 issue "pki.goog" |
| CAA | blackboard.com | 300 | 128 issue "sectigo.com" |
| CAA | blackboard.com | 300 | 128 issuewild "amazon.com" |
| CAA | blackboard.com | 300 | 128 issuewild "digicert.com" |
| CAA | blackboard.com | 300 | 128 issuewild "sectigo.com" |
Email Authentication
- MX
- Valid
- SPF
- Valid
- DMARC
- Valid
DMARC is set to p=reject, asking receiving servers to reject messages that fail authentication.
Some information is cached or comes from our own analysis, so it may not be current or complete. Our link analysis does not cover every link on the web. Metrics are based on our own methodology and should not be taken as definitive assessments of a domain’s or service’s quality or trustworthiness.