Open Authority Rating
zema.org.zm
21/100
- Harmonic centrality rank
- #2,515,622
- PageRank rank
- #2,591,193
- Crawled hosts
- 5
- Crawl release
- cc-main-2026-jul-aug-sep
- Last computed
- Oct 21, 2026
Stronger than 98% of the 133,241,980 ranked domains (by harmonic centrality).
About this domain
- Registered
- Mar 14, 2013
- Registrar
- INFRATEL Corporation Limited
- Registration expires
- May 14, 2023
- Hosting country
- ZM
- Hosting provider
- Infratel-Corporation
- IPv6
- no
- Email (MX)
- yes
- Nameservers
- ns3.infratelnameservers.co.zm, ns2.infratelnameservers.co.zm, ns1.infratelnameservers.co.zm, zndcnameserver.zndc.co.zm
- TLS certificate
- Sectigo Limited
- Certificate valid until
- Mar 17, 2027
- Homepage
- HTTP 200 after 1 redirect
- Page title
- ZEMA Home - Zambia Environmental Management Agency
- Declared language
- en-us
Sources & freshness
- Registration: via rdap:rdap.nic.zm, fetched Oct 21, 2026
- DNS: via doh, fetched Oct 21, 2026
- Hosting (IP→ASN): via iptoasn.com, fetched Oct 21, 2026
- TLS: via tls-handshake, fetched Oct 21, 2026
- Homepage: via homepage-fetch, fetched Oct 21, 2026
Facts we can’t prove are shown as unavailable — never estimated. Data refreshes roughly monthly.
OAR across crawl releases
| Crawl release | OAR |
|---|---|
| cc-main-2026-apr-may-jun | 20 |
| cc-main-2026-may-jun-jul | 20 |
| cc-main-2026-jun-jul-aug | 20 |
| cc-main-2026-jul-aug-sep | 21 |
Dashed marks are crawl releases where zema.org.zm wasn’t in the link graph; gaps are shown honestly, never interpolated.