sync.readcube.com - dns.ninja

`sync.readcube.com`

CNAME	`sync.readcube.com.herokudns.com`
DNSSEC	⚠️ Not signed
A	13.248.132.87^{🇺🇸 Amazon13.248.128.0/20}
		PTR	`a33a763eea48e22da.awsglobalaccelerator.com`
A	35.71.145.101^{🇺🇸 Amazon35.71.144.0/20}
A	75.2.97.79^{🇺🇸 Amazon75.2.96.0/20}
A	99.83.151.71^{🇺🇸 Amazon99.83.144.0/20}

`readcube.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:447^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:547^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4555^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.4.71^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.5.71^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.69.85^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gina.ns.cloudflare.com` ⭐
NS	`woz.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
TXT	`B75D342D6C`
TXT	`MS=ms46462212`
TXT	`ZOOM_verify_iGJY56xPRSC6xp2KuI8OrQ`
TXT	`access-domain-verification=c4e6c683603a2d5bb08bd1015673668e034858c21345dbc420...`
TXT	`anthropic-domain-verification-kgxt62=6EaQzpqMMaoatPzFPvZ6KxLNr`
TXT	`atlassian-domain-verification=vLzPxcHChyvIs4WZUK6OLI+PnRxMFj8EiZIXn+PKo7ZV9qn...`
TXT	`atlassian-domain-verification=vujOqKgTa3qfzkMqa3sYB93w6sf0XaNYcystg60SWUA7Cmi...`
TXT	`coda-verification=09967c6b-f510-405b-9be6-63770783b142`
TXT	`google-site-verification=esOa7rQdCxh4ZuAcO5gN8f-ZMwbOh-J0WUCWRF-I_5Q`
TXT	`google-site-verification=nbzsvEG5QLxcg3oYn_IPaeN_rqGSQPputIclOjrORuk`
TXT	`google-site-verification=plyahtdyqzlOCRoiQzhYvPoOIaFKm4G4omsdhE-Szvg`
TXT	`google-site-verification=sNYKZ7WIliC66xsxN4xPI8o4YC7Lw12VLzo2YVPbKLY`
TXT	`knowbe4-site-verification=573d9347192dda97176455ab427e4473`
TXT	`miro-verification=95335fdc096c06730131722de6a1b5615a5d9e78`
TXT	`pardot533712=a08dae7743c1073f9cda73a9e6de4430fb90249371799badbd5a1a9aa09a8e56`
TXT	`status-page-domain-verification=mjwhw039vwhn`
TXT	`v=spf1 include:_spf.google.com include:sendgrid.net include:customeriomail.co...`
TXT	`zoho-verification=zb49660945.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.4.71, 104.26.5.71, 172.67.69.85
		IPv6 hints	2606:4700:20::681a:447, 2606:4700:20::681a:547, 2606:4700:20::ac43:4555
SOA	`gina.ns.cloudflare.com`dns@cloudflare.com serial=2407797825

WOT: SAFE (62/100)
rank #26830 globally
rank #13194 in the tld
WOT: SAFE (75/100)
📈 Tranco rank: #30,606

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DNS History

2 records (1 active, 1 former)

○A54.243.91.1662017-01-05 → 2017-01-05 · 2 obs

● 2017-01-05 09:17:24
○ 2026-06-27 07:59:08

●CNAMEsync.readcube.com.herokudns.com2017-01-05 → 2026-06-27 · 2 obs

● 2017-01-05 09:17:24
● 2026-06-27 07:59:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
readcube.com	gina.ns.cloudflare.com, woz.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.117

NS records: gina.ns.cloudflare.com, woz.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readcube.com (unsigned zone)

⏱️ Timing

Total: 368ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`sync.readcube.com.herokudns.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (gina.ns.cloudflare.com, gina.ns.cloudflare.com, gina.ns.cloudflare.com...)

Analysis

IP Addresses

sync.readcube.com points to the four IP addresses 13.248.132.87, 35.71.145.101, 75.2.97.79 and 99.83.151.71.

peaceful-mastodon-r6ee72qzrpvivd94wgwkwco7.herokudns.com, app.bandwango.com.herokudns.com, promo.audata.io.herokudns.com and two other host names share IP numbers with sync.readcube.com.