programminghistorian.org
Its Domain Power Rank is relatively high.
- Global Rank
- #82,671
▲ 37,718
- Rank in TLD
- #9,736
▲ 3,983
- Referring Domains
- 630
▲ 2
- Avg. Referrer Power Rank
- 39.1
- Subdomains
- 1
- Domain age
- 14 yr 4 mo
Link Overview
- Avg. Referrer Power Rank
- 39.1
- Median Referrer Power Rank
- 35.7
- Referring Domains
- 630
- Linked Domains
- 930
Referring Domains by Power Rank
0–9 38
10–19 98
20–29 121
30–39 94
40–49 75
50–59 71
60–69 76
70–79 45
80–89 9
90–100 3
Total 630
Referring Domains
| Referring domain | Power Rank | Global Rank |
|---|---|---|
| google.com | 99.8 | #1 |
| github.com | 93.6 | #19 |
| wikipedia.org | 91.8 | #34 |
| weebly.com | 87.4 | #85 |
| outlook.com | 86.2 | #119 |
| columbia.edu | 85.2 | #151 |
| wikimedia.org | 85.2 | #150 |
| substack.com | 84.4 | #173 |
| harvard.edu | 83.6 | #218 |
| stanford.edu | 83.3 | #237 |
Basic Information
- TLD
- .org
- Registration date
- 27 Jun 2012
- Last updated
- 13 Jun 2026
- Expires
- 27 Jun 2027 (234 days remaining)
- Domain statuses
- client transfer prohibited transfer prohibited client delete prohibited delete prohibited
- Registry
- Public Interest Registry (PIR)
- Registrar
- Squarespace Domains II LLC
Subdomain
www.programminghistorian.org
DNS
| Type | Name | TTL | Value |
|---|---|---|---|
| A | programminghistorian.org | 3600 | 185.199.108.153 |
| A | programminghistorian.org | 3600 | 185.199.109.153 |
| A | programminghistorian.org | 3600 | 185.199.110.153 |
| A | programminghistorian.org | 3600 | 185.199.111.153 |
| AAAA | programminghistorian.org | 3600 | 2606:50c0:8000::153 |
| AAAA | programminghistorian.org | 3600 | 2606:50c0:8001::153 |
| AAAA | programminghistorian.org | 3600 | 2606:50c0:8002::153 |
| AAAA | programminghistorian.org | 3600 | 2606:50c0:8003::153 |
| MX | programminghistorian.org | 3600 | 1 aspmx.l.google.com |
| MX | programminghistorian.org | 3600 | 5 alt1.aspmx.l.google.com |
| MX | programminghistorian.org | 3600 | 5 alt2.aspmx.l.google.com |
| MX | programminghistorian.org | 3600 | 10 alt3.aspmx.l.google.com |
| MX | programminghistorian.org | 3600 | 10 alt4.aspmx.l.google.com |
| NS | programminghistorian.org | 21600 | ns-cloud-e1.googledomains.com |
| NS | programminghistorian.org | 21600 | ns-cloud-e2.googledomains.com |
| NS | programminghistorian.org | 21600 | ns-cloud-e3.googledomains.com |
| NS | programminghistorian.org | 21600 | ns-cloud-e4.googledomains.com |
| SOA | programminghistorian.org | 21600 | ns-cloud-e1.googledomains.com. cloud-dns-hostmaster.google.com. 8 21600 3600 259200 300 |
| TXT | programminghistorian.org | 3600 | google-site-verification=m6P3GNrVUMDBZi6cEkRxu94RJYMO2H9hSLO6xWwUtoo |
Email Authentication
- MX
- Valid
- 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.