Domain Intelligence Report
IPv6
Measured 2026-11-01 14:46 UTC · aaaa.botD
The website has no IPv6.
posthog.com has no IPv6 address published.
- ✗ posthog.com: no IPv6 address
- ✗ www.posthog.com: no IPv6 address
- ✓ Mail: 5 of 5 servers have IPv6
- ✓ Nameservers: 2 of 2 have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| posthog.com | Publishedno IPv6 address published | Answers when we connectnothing to test |
| www.posthog.com | Publishedno IPv6 address published | Answers when we connectnothing to test |
Publishedaspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.com | Answers when we connect✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6 | |
| Nameservers | Publishedrory.ns.cloudflare.comjulissa.ns.cloudflare.com | Answers when we connect✓ has IPv6✓ has IPv6 |
First measured 2026-11-01: no IPv6 publishedIf this changes, the date will appear here.
Lineage
Our records: Oct 18, 2013 → Nov 1, 2026Oldest registry snapshot we hold: 2016 · 6 renewals on record · DNS at Cloudflare · 2 nameserver changes seen. These dates are when our records begin, not when the domain was registered.
Registrar
105 snapshots
Amazon Registrar, Inc.Re-registeredbetween Nov 9, 2016 and Jun 25, 2020The name lapsed and was registered again through Google LLC. Expiry moved from 2017-05-12 to 2021-01-23.Moved to Amazon Registrar, Incbetween Oct 15, 2020 and Jan 14, 2021From Google LLC to Amazon Registrar, Inc, with 1 year added. Expiry moved from 2021-01-23 to 2022-01-23.Renewed +1 yearbetween Nov 30, 2021 and May 19, 2022Expiry moved from 2022-01-23 to 2023-01-23, at Amazon Registrar, Inc.Renewed +1 yearbetween Nov 26, 2022 and Jan 15, 2023Expiry moved from 2023-01-23 to 2024-01-23, at Amazon Registrar, Inc.Renewed +1 yearbetween Dec 17, 2023 and Jan 17, 2024Expiry moved from 2024-01-23 to 2025-01-23, at Amazon Registrar, Inc.Renewed +1 yearbetween Nov 28, 2024 and Jan 27, 2025Expiry moved from 2025-01-23 to 2026-01-23, at Amazon Registrar, Inc.Renewed +1 yearbetween Dec 11, 2025 and Jan 17, 2026Expiry moved from 2026-01-23 to 2027-01-23, at Amazon Registrar, Inc.
Nameservers
registry zone files
seen in WHOIS
CloudflareDNS moved to Amazon Route 53between Apr 3, 2018 and Jun 25, 2020ns69.domaincontrol.com, ns70.domaincontrol.com → ns-1049.awsdns-03.org, ns-1987.awsdns-56.co.uk, ns-246.awsdns-30.com, ns-737.awsdns-28.net. Old set last in the registry zone file on 2018-04-03; new set first seen in WHOIS on 2020-06-25.DNS moved to Cloudflarebetween Jun 25, 2020 and Jul 17, 2020ns-1049.awsdns-03.org, ns-1987.awsdns-56.co.uk, ns-246.awsdns-30.com, ns-737.awsdns-28.net → julissa.ns.cloudflare.com, rory.ns.cloudflare.com. Old set last seen in WHOIS on 2020-06-25; new set first seen in WHOIS on 2020-07-17.
IPv6
aaaa.bot check
201720212026
What changed (latest 8 of 10)
- IPv6 first measured: no IPv6 published on Nov 1, 2026posthog.com: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-01 14:46 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- Renewed +1 year between Dec 11, 2025 and Jan 17, 2026Expiry moved from 2026-01-23 to 2027-01-23, at Amazon Registrar, Inc.
- Renewed +1 year between Nov 28, 2024 and Jan 27, 2025Expiry moved from 2025-01-23 to 2026-01-23, at Amazon Registrar, Inc.
- Renewed +1 year between Dec 17, 2023 and Jan 17, 2024Expiry moved from 2024-01-23 to 2025-01-23, at Amazon Registrar, Inc.
- Renewed +1 year between Nov 26, 2022 and Jan 15, 2023Expiry moved from 2023-01-23 to 2024-01-23, at Amazon Registrar, Inc.
- Renewed +1 year between Nov 30, 2021 and May 19, 2022Expiry moved from 2022-01-23 to 2023-01-23, at Amazon Registrar, Inc.
- Moved to Amazon Registrar, Inc between Oct 15, 2020 and Jan 14, 2021From Google LLC to Amazon Registrar, Inc, with 1 year added. Expiry moved from 2021-01-23 to 2022-01-23.
- DNS moved to Cloudflare between Jun 25, 2020 and Jul 17, 2020ns-1049.awsdns-03.org, ns-1987.awsdns-56.co.uk, ns-246.awsdns-30.com, ns-737.awsdns-28.net → julissa.ns.cloudflare.com, rory.ns.cloudflare.com. Old set last seen in WHOIS on 2020-06-25; new set first seen in WHOIS on 2020-07-17.
Registrar and renewals: 105 WHOIS/RDAP snapshots, 2016-11-09 to 2026-05-25 (ledger built 2026-09-27). Every renewal
Nameservers, registry zone files: 106 .com zone-file snapshots held, 2013-10-18 to 2026-11-01.
Nameservers, WHOIS snapshots: 72 WHOIS/RDAP snapshots that listed nameservers, 2016-11-09 to 2026-06-28 (who.is archive). A change is placed between the nearest observations on either side, from whichever source made them; where the two sources disagree, both are shown.
Hatched = the span we hold records for. A coloured bar runs only between observations that named the same registrar or operator; nothing is assumed in between.
Each mark sits at the first observation of the new state; its bracket runs back to the last observation of the old one.
Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
threat: mediumno attacks or spoofing
Up
HTTP 200reachable and responding
Right
Set up Page Watchit is what it is
Ready
66d aheadyou see what's coming
Outline
WHOIS
Amazon Registrar, Inc. · registered 6 years ago · expires Jan 23, 2027
DNS
1 A · 5 MX · 2 NS · 1 SOA · 25 TXT
SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 66d · 1 SANs
Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=quarantine)
DNSSEC
signed · valid chain of trust
Tech Stack
CDN: Cloudflare · Host: Amazon Web Services · Email: Google Workspace · Vercel
HTTP
1 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✗
Security
C (150/215) · 1 critical · 2 high
Threats
risk: medium
Deliverability
A (94/100) · 5 MX · 10 IPs · 2 issue(s)
Subdomains
3 found · 112 answered — docs, oauth, www
Web Archive
DNS Recordschecked 26.1d ago
Details1 A · 5 MX · 2 NS · 1 SOA · 25 TXT
WHOISchecked 26.1d ago
DetailsThen vs Nownew
No card for this name. We compare then and now for domains that are in the top million and had an AboutUs page. That says nothing about this domain’s age or safety.
Check what it is now →SSL/TLSchecked 26.1d ago
DetailsValid certificate
Issuer: Let's Encrypt
Protocol: TLSv1.3
Expires in 66 days
1 SAN(s)
Securitychecked 26.1d ago
DetailsC
150/215
1 critical2 high
Weakest: Basic Security, Record Security
Email Authchecked 26.1d ago
DetailsSPFDKIMDMARC
Policy: quarantine
DNSSECchecked 26.1d ago
DetailsValid chain of trust
Tech Stackchecked 26.1d ago
DetailsCloudflareAmazon Web ServicesVercelEmail: Google WorkspaceGoogle Search ConsoleApple BusinessStripeHubSpot
HTTP / Headerschecked 26.1d ago
Details1 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 26.1d ago
DetailsRisk: medium · score 0.6999999999999998
Zone census
Subdomainschecked 26.1d ago
DetailsWeb Archivechecked 26.1d ago
DetailsFirst archived: unknown
Deliverabilitychecked 26.1d ago
DetailsA
94/100 · 2 issue(s)
5 MX · 10 IP(s)
Top fix: MX IP 2800:3f0:4003:c14::1a has no PTR (reverse DNS)
Want to know when posthog.com changes?
Monitor it free — 5 monitors, uptime checks every 5 minutes, email alerts when something breaks. No card required.
Explore related
Registered in 2020 — the same year as nominetdns.uk, pages.dev and cdnbuild.net.