IPv6
Measured 2026-11-02 09:07 UTC · aaaa.botThe website has no IPv6.
semrush.com has no IPv6 address published.
- ✗ semrush.com: no IPv6 address
- ✗ www.semrush.com: no IPv6 address
- ✗ Mail: 0 of 2 servers have IPv6
- ✓ Nameservers: 4 of 4 have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| semrush.com | Publishedno IPv6 address published | Answers when we connectnothing to test |
| www.semrush.com | Publishedno IPv6 address published | Answers when we connectnothing to test |
Publishedusb-smtp-inbound-1.mimecast.comusb-smtp-inbound-2.mimecast.com | Answers when we connect✗ no IPv6✗ no IPv6 | |
| Nameservers | Publishedns-cloud-e3.googledomains.comns-cloud-e4.googledomains.comns-cloud-e1.googledomains.comns-cloud-e2.googledomains.com | Answers when we connect✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6 |
Lineage
Our records: Feb 11, 2009 → Nov 2, 2026Oldest registry snapshot we hold: 2011 · 9 renewals on record · DNS at Google Domains · 5 nameserver changes seen. These dates are when our records begin, not when the domain was registered.
Registrar
- Onlinenic IncJun 2014 – Jan 2026
- MarkMonitor Inc.last seen Jan 2026Jan 2026
DNS provider
- dns-diy.netFeb 2009 – Mar 2011
- semrush.comZone file and WHOIS disagree here; see What changed.Apr 2011 – Mar 2014
- Amazon Route 53Mar 2014 – Jul 2020
- CloudflareAug 2020 – Jan 2021
- Google DomainsNOWSeen from Feb 2021
IPv6
- IPv6no IPv6 publishedFirst measured Nov 2026
What changed (latest 8 of 16, every source disagreement included)
- IPv6 first measured: no IPv6 published on Nov 2, 2026semrush.com: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-02 09:07 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- Moved to MarkMonitor Inc between Jan 14, 2026 and Jan 30, 2026From Onlinenic Inc to MarkMonitor Inc, with 1 year added. Expiry moved from 2034-10-03 to 2035-10-03.
- Renewed +3 years between Jun 1, 2025 and Jul 6, 2025Expiry moved from 2031-10-03 to 2034-10-03, at Onlinenic Inc.
- Renewed +6 years between Jun 12, 2022 and Jun 17, 2022Expiry moved from 2025-10-03 to 2031-10-03, at Onlinenic Inc.
- Renewed +3 years between May 7, 2022 and May 30, 2022Expiry moved from 2022-10-03 to 2025-10-03, at Onlinenic Inc.
- Renewed +1 year between Jul 25, 2021 and Aug 11, 2021Expiry moved from 2021-10-03 to 2022-10-03, at Onlinenic Inc.
- DNS moved to Google Domains between Jan 29, 2021 and Feb 8, 2021clark.ns.cloudflare.com, maya.ns.cloudflare.com → ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com. Old set last seen in WHOIS on 2021-01-29; new set first seen in WHOIS on 2021-02-08.
- Zone file and WHOIS disagree between Oct 18, 2013 and Feb 24, 2014From 2013-10-18 to 2014-02-24 the registry zone file lists ns1.semrush.com, ns2.semrush.com, ns3.semrush.com, while WHOIS snapshots list ns1.semrush.com. Both are shown; neither is assumed right.
Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.
Registrar and renewals: 509 WHOIS/RDAP snapshots, 2011-07-16 to 2026-05-31 (ledger built 2026-09-27). Every renewal
DNS provider, registry zone files: 106 .com zone-file snapshots held, 2013-10-18 to 2026-11-01.
DNS provider, WHOIS snapshots: 576 WHOIS/RDAP snapshots that listed nameservers, 2009-02-11 to 2026-06-11 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.
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