pkg.readcube.com - dns.ninja

`pkg.readcube.com`

CNAME	`d2cxbdo83tcxgc.cloudfront.net`
DNSSEC	⚠️ Not signed
A	2600:9000:2269:1c00:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:7600:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:8e00:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:9a00:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:a200:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:b600:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:cc00:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:de00:13:ddf7:5700:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	18.67.65.75^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.92^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.113^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.123^{🇺🇸 Amazon18.67.64.0/21}
NS	`ns-1517.awsdns-61.org` ⭐
		A	2600:9000:5305:ed00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1517.awsdns-61.org`
		A	205.251.197.237^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1517.awsdns-61.org`
NS	`ns-1715.awsdns-22.co.uk`
		A	2600:9000:5306:b300::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1715.awsdns-22.co.uk`
		A	205.251.198.179^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1715.awsdns-22.co.uk`
NS	`ns-206.awsdns-25.com`
		A	2600:9000:5300:ce00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-206.awsdns-25.com`
		A	205.251.192.206^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-206.awsdns-25.com`
NS	`ns-579.awsdns-08.net`
		A	2600:9000:5302:4300::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-579.awsdns-08.net`
		A	205.251.194.67^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-579.awsdns-08.net`
HTTPS	HTTP/2, HTTP/3
SOA	`ns-1517.awsdns-61.org`awsdns-hostmaster@amazon.com serial=1

`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

1 record (1 active, 0 former)

●CNAMEd2cxbdo83tcxgc.cloudfront.net2026-04-03 → 2026-06-27 · 2 obs

● 2026-04-03 22:25:50
● 2026-06-27 13:37:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net...	-
readcube.com	gina.ns.cloudflare.com, woz.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.150

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: 263ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`d2cxbdo83tcxgc.cloudfront.net`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

pkg.readcube.com directs to 12 IP numbers: 18.67.65.75, 18.67.65.92, 18.67.65.113 and 9 other.

Two other host names, along with d24s43v0ajutkq.cloudfront.net, d2qavizvwspzyc.cloudfront.net and upskillist.com, also share IP numbers with pkg.readcube.com.

Name Servers

The NS records for pkg.readcube.com point to four name servers: ns-206.awsdns-25.com, ns-579.awsdns-08.net, ns-1517.awsdns-61.org and ns-1715.awsdns-22.co.uk.

pkg.readcube.com has at least partial name server overlap with other domains, such as timetarget.com, ipmq.net, dev.miwa-links.aws.miwalinks.jp and two others.

ns-206.awsdns-25.com, ns-579.awsdns-08.net, ns-1517.awsdns-61.org and ns-1715.awsdns-22.co.uk all point to exactly two IP numbers each: ns-206.awsdns-25.com → 205.251.192.206 and 2600:9000:5300:ce00::1; ns-579.awsdns-08.net → 205.251.194.67 and 2600:9000:5302:4300::1; ns-1517.awsdns-61.org → 205.251.197.237 and 2600:9000:5305:ed00::1; ns-1715.awsdns-22.co.uk → 205.251.198.179 and 2600:9000:5306:b300::1.