🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stringlock.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:86d8^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:67c^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.6.124^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.134.216^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`craig.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cc0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`craig.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`craig.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`craig.ns.cloudflare.com`
		A	108.162.195.192^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.44.192^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.35.192^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ziggy.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ziggy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ziggy.ns.cloudflare.com`
		A	108.162.194.237^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	162.159.38.237^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	172.64.34.237^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
MX	`mx1.larksuite.com` ⭐
		A	18.139.153.173^{🇸🇬 Amazon18.138.0.0/15 EC2 SIN prefix}
			PTR	`ec2-18-139-153-173.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.larksuite.com`⁽⁵⁾
		A	18.139.153.173^{🇸🇬 Amazon18.138.0.0/15 EC2 SIN prefix}
			PTR	`ec2-18-139-153-173.ap-southeast-1.compute.amazonaws.com`
MX	`mx3.larksuite.com`⁽¹⁰⁾
		A	18.139.153.173^{🇸🇬 Amazon18.138.0.0/15 EC2 SIN prefix}
			PTR	`ec2-18-139-153-173.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.223^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.230.154^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`google-site-verification=1gAsZCH9ordzrzXDOKBIbu5yJKZ4FtrwBuYgVzi4m6A`
TXT	`v=spf1 +include:spf.onlarksuite.com -all`
TXT	`verification-code-site-App_lark=ap7LmObBozrl4FBy7tND`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.6.124, 172.67.134.216
		IPv6 hints	2606:4700:3033::ac43:86d8, 2606:4700:3034::6815:67c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=54, name=cloudflare-ech.com
SOA	`craig.ns.cloudflare.com`dns@cloudflare.com serial=2411564018

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

stringlock.org

stringlock.app

Similar names

lockstring.pages.dev

Previous names

Next names

DNS History

13 records (9 active, 4 former)

●NScraig.ns.cloudflare.com2026-08-31 → 2026-09-07 · 2 obs

● 2026-08-31 16:23:20
● 2026-09-07 17:36:26

●NSziggy.ns.cloudflare.com2026-08-31 → 2026-09-07 · 2 obs

● 2026-08-31 16:23:20
● 2026-09-07 17:36:26

●MXmx1.larksuite.com2026-08-31 → 2026-09-07 · 2 obs

● 2026-08-31 16:23:20
● 2026-09-07 17:36:26

●MXmx2.larksuite.com2026-08-31 → 2026-09-07 · 2 obs

● 2026-08-31 16:23:20
● 2026-09-07 17:36:26

●MXmx3.larksuite.com2026-08-31 → 2026-09-07 · 2 obs

● 2026-08-31 16:23:20
● 2026-09-07 17:36:26

●A104.21.6.1242026-09-04 → 2026-09-07 · 3 obs

○ 2026-08-31 16:23:20
● 2026-09-04 23:51:24
● 2026-09-07 17:36:26

●A172.67.134.2162026-09-04 → 2026-09-07 · 3 obs

○ 2026-08-31 16:23:20
● 2026-09-04 23:51:24
● 2026-09-07 17:36:26

○A188.114.96.02026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 16:23:20
○ 2026-09-04 23:51:24
○ 2026-09-07 17:36:26

○A188.114.97.02026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 16:23:20
○ 2026-09-04 23:51:24
○ 2026-09-07 17:36:26

●A2606:4700:3033::ac43:86d82026-09-04 → 2026-09-07 · 3 obs

○ 2026-08-31 16:23:20
● 2026-09-04 23:51:24
● 2026-09-07 17:36:26

●A2606:4700:3034::6815:67c2026-09-04 → 2026-09-07 · 3 obs

○ 2026-08-31 16:23:20
● 2026-09-04 23:51:24
● 2026-09-07 17:36:26

○A2a06:98c1:3120::2026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 16:23:20
○ 2026-09-04 23:51:24
○ 2026-09-07 17:36:26

○A2a06:98c1:3121::2026-08-31 → 2026-08-31 · 3 obs

● 2026-08-31 16:23:20
○ 2026-09-04 23:51:24
○ 2026-09-07 17:36:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
stringlock.app	craig.ns.cloudflare.com, ziggy.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.192

NS records: craig.ns.cloudflare.com, ziggy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stringlock.app (unsigned zone)

⏱️ Timing

Total: 931ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.134.216, 104.21.6.124`
AAAA	2	`2606:4700:3034::6815:67c, 2606:4700:3033::ac43:86d8`
NS	2	`craig.ns.cloudflare.com, ziggy.ns.cloudflare.com`
MX	3	`mx1.larksuite.com (pri: 1), mx3.larksuite.com (pri: 10)...`
TXT	3	`google-site-verification=1gAsZCH9ordzrzX, v=spf1 +include:spf.onlarksuite.com -all...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`craig.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

stringlock.app has four IP addresses: 104.21.6.124, 172.67.134.216, 2606:4700:3033::ac43:86d8 and 2606:4700:3034::6815:67c.

rhinvestmentservices.co.uk, r23urg.mom, 068betbr.com plus two other host names have IP numbers in common with stringlock.app.

Name Servers

The NS records for stringlock.app delegate to craig.ns.cloudflare.com and ziggy.ns.cloudflare.com.

The name server configuration of stringlock.app is shared with other domains, for instance ama-qc7.pages.dev, esi-jmali1360.workers.dev, landing-taggito.pages.dev and two others.

stringlock.app partially shares its NS delegation with several other domains, including berichmondmayfair.london, mineolacityjailtx.org, magicloots.click and two others.

These name servers regularly co-occur with the name servers autumn.ns.cloudflare.com, diva.ns.cloudflare.com and ignat.ns.cloudflare.com.

Hosts with 6 IP addresses each:

craig.ns.cloudflare.com maps to 108.162.195.192, 162.159.44.192, 172.64.35.192 and 3 additional IP addresses.

ziggy.ns.cloudflare.com maps to 108.162.194.237, 162.159.38.237, 172.64.34.237 and 3 additional IP addresses.

Mail Servers

stringlock.app uses three mail servers — mx1.larksuite.com, mx2.larksuite.com and mx3.larksuite.com.

At least some of the mail servers used by stringlock.app are shared with other domains: sak(0x616e616c)sayd.com, pixeloogic.com, ezgogo.app and two others among them.

Host names carrying three IP numbers:

mx3.larksuite.com maps to three IP addresses: 18.139.153.173, 101.126.58.223 and 122.14.230.154.

Host names resolving to a single IP address:

mx1.larksuite.com resolves to the IP address 18.139.153.173.

mx2.larksuite.com resolves to the IP address 18.139.153.173.

Three host names point to 18.139.153.173: mx3.larksuite.com, mx1.larksuite.com and mx2.larksuite.com.

stringlock.app - robtex.com

stringlock.app

app

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`stringlock.app`

`app`