classroom20.com
Its Domain Power Rank is moderate.
- Global Rank
- #359,502
▲ 349,785
- Rank in TLD
- #149,315
▲ 139,527
- Referring Domains
- 360
▲ 1
- Avg. Referrer Power Rank
- 29.0
- Subdomains
- 7
- Domain age
- 19 yr 11 mo
Link Overview
- Avg. Referrer Power Rank
- 29.0
- Median Referrer Power Rank
- 24.8
- Referring Domains
- 360
- Linked Domains
- 5,250
Referring Domains by Power Rank
0–9 32
10–19 106
20–29 79
30–39 60
40–49 30
50–59 23
60–69 18
70–79 5
80–89 5
90–100 2
Total 360
Referring Domains
| Referring domain | Power Rank | Global Rank |
|---|---|---|
| wikipedia.org | 91.8 | #34 |
| squarespace.com | 90.3 | #46 |
| weebly.com | 87.4 | #85 |
| harvard.edu | 83.6 | #218 |
| pewresearch.org | 83.3 | #235 |
| stanford.edu | 83.3 | #237 |
| frontiersin.org | 80.3 | #465 |
| about.me | 77.9 | #722 |
| eff.org | 77.1 | #834 |
| edweek.org | 72.6 | #2,072 |
Basic Information
- TLD
- .com
- Registration date
- 9 Nov 2006
- Last updated
- 15 Jul 2026
- Expires
- 9 Nov 2030 (1,465 days remaining)
- Domain statuses
- clientDeleteProhibited clientRenewProhibited clientTransferProhibited clientUpdateProhibited
- Registry
- VeriSign Global Registry Services
- Registrar
- GoDaddy.com, LLC
Subdomain
blog.classroom20.comlive.classroom20.comscitechinstitute.orgwww.classroom20.comwiki.classroom20.comworkshops.classroom20.comww.classroom20.comwww.classroom20.com
DNS
| Type | Name | TTL | Value |
|---|---|---|---|
| A | classroom20.com | 600 | 208.82.16.53 |
| AAAA | classroom20.com | 600 | 2620:46:2000:16::53 |
| NS | classroom20.com | 3600 | ns36.domaincontrol.com |
| NS | classroom20.com | 3600 | ns35.domaincontrol.com |
| SOA | classroom20.com | 3600 | ns35.domaincontrol.com. dns.jomax.net. 2026071502 28800 7200 604800 600 |
Email Authentication
- MX
- Warning
No MX record was found, but mail delivery may fall back to this domain’s A or AAAA record.
- SPF
- Not configured
No matching DNS record was found.
- DMARC
- Not configured
DMARC is not configured.
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.