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Checked:
08.07.2026 01:44:39

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1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
dsm.lymphtofu.com	CNAME	yttriodlithiuranium.synology.me	yes	1	0
	A	66.66.99.216 Albany/New York/United States (US) - Charter Communications Hostname: syn-066-066-099-216.res.spectrum.com	yes
	AAAA	2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff Albany/New York/United States (US) - Charter Communications Inc	yes
www.dsm.lymphtofu.com		Name Error	yes	1	0
*.lymphtofu.com	A	216.40.34.41	yes
	AAAA		yes
	CNAME		yes
*.dsm.lymphtofu.com	A	Name Error	yes
	AAAA	Name Error	yes
	CNAME	Name Error	yes

2. DNSSEC

Zone (*)	DNSSEC - Informations

Zone: (root)
(root)	1 DS RR published


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• Status: Valid because published


	4 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 54393, Flags 256


	Public Key with Algorithm 8, KeyTag 57780, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.07.2026, 00:00:00 +, Signature-Inception: 01.07.2026, 00:00:00 +, KeyTag 20326, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: com
com	1 DS RR in the parent zone found


	DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 20.07.2026, 20:00:00 +, Signature-Inception: 07.07.2026, 19:00:00 +, KeyTag 57780, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 57780 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 19718, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 27677, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 21.07.2026, 14:02:35 +, Signature-Inception: 06.07.2026, 13:57:35 +, KeyTag 19718, Signer-Name: com


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 19718 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest "isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: lymphtofu.com
lymphtofu.com	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "7deahp14e1m22cjnuftjgdl96i4bt7ji" between the hashed NSEC3-owner "7dea895r1l8dgu687b6bdc6mbqa1p79p" and the hashed NextOwner "7deal9knfu7mj0vdlqeo6s092bcvoant". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 7dea895r1l8dgu687b6bdc6mbqa1p79p.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 12.07.2026, 02:34:12 +, Signature-Inception: 05.07.2026, 01:24:12 +, KeyTag 27677, Signer-Name: com


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q3udg8cekkae7rukpgct1dvssh8ll". So that domain name is the Closest Encloser of "lymphtofu.com". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 11.07.2026, 18:10:23 +, Signature-Inception: 04.07.2026, 17:00:23 +, KeyTag 27677, Signer-Name: com


	0 DNSKEY RR found




Zone: dsm.lymphtofu.com
dsm.lymphtofu.com	0 DS RR in the parent zone found

Zone: www.dsm.lymphtofu.com
www.dsm.lymphtofu.com	0 DS RR in the parent zone found

Zone: (root)
(root)	1 DS RR published


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• Status: Valid because published


	4 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 54393, Flags 256


	Public Key with Algorithm 8, KeyTag 57780, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.07.2026, 00:00:00 +, Signature-Inception: 01.07.2026, 00:00:00 +, KeyTag 20326, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: me
me	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 45352, DigestType 2 and Digest dwjIptXXK2MhS7/1DLVFU/fgeh+l6QdL2NY8QxAthVk=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner me., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 20.07.2026, 20:00:00 +, Signature-Inception: 07.07.2026, 19:00:00 +, KeyTag 57780, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 57780 used to validate the DS RRSet in the parent zone


	3 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 15291, Flags 256


	Public Key with Algorithm 8, KeyTag 22998, Flags 256


	Public Key with Algorithm 8, KeyTag 45352, Flags 257 (SEP = Secure Entry Point)


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner me., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 22.07.2026, 15:51:32 +, Signature-Inception: 01.07.2026, 14:51:32 +, KeyTag 45352, Signer-Name: me


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 45352 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 45352, DigestType 2 and Digest "dwjIptXXK2MhS7/1DLVFU/fgeh+l6QdL2NY8QxAthVk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: synology.me
synology.me	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "sghodq0sgkv7fohgafl0dkvuoaj6l9n3" between the hashed NSEC3-owner "sgg72dbkvvks2tfk2pf7ngjbc9u5o3v6" and the hashed NextOwner "sghsj8tfndholu0ds4bm4sak6oukdfvf". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner sgg72dbkvvks2tfk2pf7ngjbc9u5o3v6.me., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 22.07.2026, 15:51:32 +, Signature-Inception: 01.07.2026, 14:51:32 +, KeyTag 22998, Signer-Name: me


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "8erb7pqu7ah1mdb8br1ehmoiq39p1otf" as Owner. That's the Hash of "me" with the NextHashedOwnerName "8erd8e4a32vmtkvbeuu2hearq661lbv9". So that domain name is the Closest Encloser of "synology.me". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner 8erb7pqu7ah1mdb8br1ehmoiq39p1otf.me., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 28.07.2026, 23:38:37 +, Signature-Inception: 07.07.2026, 22:38:37 +, KeyTag 22998, Signer-Name: me


	0 DNSKEY RR found




Zone: yttriodlithiuranium.synology.me
yttriodlithiuranium.synology.me	0 DS RR in the parent zone found


	0 DNSKEY RR found

3. Name Servers

Domain	Nameserver	NS-IP
www.dsm.lymphtofu.com	• ns1.hover.com
lymphtofu.com	• ns1.hover.com / bra2001	216.40.47.26 Toronto/Ontario/Canada (CA) - Tucows.com Co.	•
	•	2604:4000:0:d:216:40:47:26 Beauharnois/Quebec/Canada (CA) - Tucows.com Co.	•
	• ns2.hover.com / cnco002	64.98.148.13 Ashburn/Virginia/United States (US) - Tucows.com Co.	•
	•	2604:4000:2800:d:64:99:148:13 Toronto/Ontario/Canada (CA) - Tucows.com Co.	•
com	• a.gtld-servers.net / nnn1-par6		•
	• b.gtld-servers.net / nnn1-elwaw4		•
	• c.gtld-servers.net / nnn1-par6		•
	• d.gtld-servers.net / nnn1-par6		•
	• e.gtld-servers.net / nnn1-par6		•
	• f.gtld-servers.net / nnn1-defra-4		•
	• g.gtld-servers.net / nnn1-defra-4		•
	• h.gtld-servers.net / nnn1-defra-4		•
	• i.gtld-servers.net / nnn1-defra-4		•
	• j.gtld-servers.net / nnn1-ein1		•
	• k.gtld-servers.net / nnn1-frmrs-2		•
	• l.gtld-servers.net / nnn1-frmrs-2		•
	• m.gtld-servers.net / nnn1-frmrs-2		•

yttriodlithiuranium.synology.me	• ddns-ns1.quickconnect.to	209.249.51.187 Tukwila/Washington/United States (US) - Zayo Bandwidth	•
synology.me	• ddns-ns1.quickconnect.to	209.249.51.187 Tukwila/Washington/United States (US) - Zayo Bandwidth	•
	• ddns-ns2.quickconnect.to	64.124.13.223 Santa Cruz/California/United States (US) - Zayo Bandwidth	•
	• ddns-ns3.quickconnect.to	209.249.51.187 Tukwila/Washington/United States (US) - Zayo Bandwidth	•
	• ddns-ns4.quickconnect.to	64.124.13.223 Santa Cruz/California/United States (US) - Zayo Bandwidth	•
me	• a0.nic.me / fra1.micro.hosts.meta.redstone.afilias-nst.info-1740000113		•
	• a2.nic.me / FRA4		•
	• b0.nic.me / app22.lax1.hosts.meta.redstone.afilias-nst.info-1633102198		•
	• b2.nic.me / FRA3		•
	• c0.nic.me / app7.ams2.hosts.meta.redstone.afilias-nst.info-1615580861		•

4. SOA-Entries

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1783467856
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	8

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1783467871
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	5

Domain:	lymphtofu.com
Zone-Name:	lymphtofu.com
Primary:	ns1.hover.com
Mail:	dnsmaster.hover.com
Serial:	1735709137
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	300
num Entries:	4

Domain:	www.dsm.lymphtofu.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:	1


Domain:	me
Zone-Name:	me
Primary:	a0.nic.me
Mail:	hostmaster.donuts.email
Serial:	1783467411
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	3600
num Entries:	5

Domain:	synology.me
Zone-Name:	synology.me
Primary:	ddns-ns1.quickconnect.to
Mail:	domain.synology.com
Serial:	1762484000
Refresh:	3600
Retry:	300
Expire:	6040000
TTL:	3600
num Entries:	4

Domain:	yttriodlithiuranium.synology.me
Zone-Name:	synology.me
Primary:	ddns-ns1.quickconnect.to
Mail:	domain.synology.com
Serial:	1762484000
Refresh:	3600
Retry:	300
Expire:	6040000
TTL:	3600
num Entries:	1

5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks

Domainname	Http-Status	Sec.	G
• http://dsm.lymphtofu.com/ 66.66.99.216	-14	10.026	T
Timeout - The operation has timed out.

• http://dsm.lymphtofu.com/ 2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff	-14	10.027	T
Timeout - The operation has timed out.

• https://dsm.lymphtofu.com/ 66.66.99.216	-14	10.017	T
Timeout - The operation has timed out.

• https://dsm.lymphtofu.com/ 2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff	-14	10.020	T
Timeout - The operation has timed out.

• http://dsm.lymphtofu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 66.66.99.216	-14	10.023	T
Timeout - The operation has timed out.
Visible Content:

• http://dsm.lymphtofu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff	-14	10.024	T
Timeout - The operation has timed out.
Visible Content:

• https://66.66.99.216/ 66.66.99.216	-14	10.020	T
Timeout - The operation has timed out.

• https://[2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff]/ 2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff	-14	10.023	T
Timeout - The operation has timed out.

7. Comments

	1. General Results, most used to calculate the result
A	name "dsm.lymphtofu.com" is subdomain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 108094 (complete: 276475)
A	Good: All ip addresses are public addresses
A	Good: Minimal 2 ip addresses per domain name found: dsm.lymphtofu.com has 2 different ip addresses (authoritative).
A	Good: Ipv4 and Ipv6 addresses per domain name found: dsm.lymphtofu.com has 1 ipv4, 1 ipv6 addresses
A	Good: No asked Authoritative Name Server had a timeout
A	DNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
	HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
A	Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain dsm.lymphtofu.com, 2 ip addresses.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain dsm.lymphtofu.com, 2 ip addresses.
B	No _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.dsm.lymphtofu.com
	2. Header-Checks
U			No https result with http status 2 or 4 (standard-check) found, no header checked.
	3. DNS- and NameServer - Checks
A	Info:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 7 Queries complete, 7 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: ns1.hover.com, ns2.hover.com, 2 Name Servers included in Delegation: ns1.hover.com, ns2.hover.com, 2 Name Servers included in 1 Zone definitions: ns1.hover.com, ns2.hover.com, 1 Name Servers listed in SOA.Primary: ns1.hover.com.
A	Good: Only one SOA.Primary Name Server found.: ns1.hover.com.
A	Good: SOA.Primary Name Server included in the delegation set.: ns1.hover.com.
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Info: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 216., 64., 2 different subnets (first two Bytes): 216.40., 64.98., 2 different subnets (first three Bytes): 216.40.47., 64.98.148.
A	Excellent: Every Name Server IPv4-address starts with an unique Byte.
A	Info: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2604:, 1 different subnets (first two blocks): 2604:4000:, 2 different subnets (first three blocks): 2604:4000:0000:, 2604:4000:2800:, 2 different subnets (first four blocks): 2604:4000:0000:000d:, 2604:4000:2800:000d:
A	Good: Name Server IPv6 addresses from different subnets found.
A	Good: Nameserver supports TCP connections: 4 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 4 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
	Nameserver doesn't pass all EDNS-Checks: a0.nic.me: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (fra1.micro.hosts.meta.redstone.afilias-nst.info-1740000113). COOKIE: fatal timeout. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: ns1.hover.com: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
A	Good: All SOA have the same Serial Number
	Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
	4. Content- and Performance-critical Checks
	http://dsm.lymphtofu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 66.66.99.216	-14	Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
	http://dsm.lymphtofu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2603:7080:b33d:d1e5:9209:d0ff:fe21:c4ff	-14	Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Info: No img element found, no alt attribute checked
A	Good: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
A	Duration: 223397 milliseconds, 223.397 seconds

8. Connections

No connection informations found. Perhaps only http - connections.

9. Certificates

No certificate informations found. Perhaps only http - connections.

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuer				last 7 days	active	num Certs
CN=YE1, O=Let's Encrypt, C=US				0	2	2
CN=YR1, O=Let's Encrypt, C=US				0	2	2
CN=E7, O=Let's Encrypt, C=US				0	0	1
CN=R13, O=Let's Encrypt, C=US				0	0	1

CertSpotter-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
15743180630 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-07-07 22:31:46	2026-10-05 22:31:45	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries
15743179470 leaf cert	CN=YR1, O=Let's Encrypt, C=US	2026-07-07 22:31:42	2026-10-05 22:31:41	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries
15343906375 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-06-11 19:50:32	2026-09-09 19:50:31	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries
15343906084 leaf cert	CN=YR1, O=Let's Encrypt, C=US	2026-06-11 19:50:28	2026-09-09 19:50:27	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries
14444810551 leaf cert	CN=E7, O=Let's Encrypt, C=US	2026-04-10 01:16:45	2026-07-09 01:16:44	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries
14444810185 leaf cert	CN=R13, O=Let's Encrypt, C=US	2026-04-10 01:16:41	2026-07-09 01:16:40	drive.lymphtofu.com, dsm.lymphtofu.com, file.lymphtofu.com, jellyfin.lymphtofu.com, media.lymphtofu.com, nextcloud.lymphtofu.com, note.lymphtofu.com, vault.lymphtofu.com - 8 entries

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found

11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404

12. Html-Parsing via https://validator.w3.org/nu/

No https result http status 200 and Content-Type text/html or text/xml found, no Html-Parsing - Check

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.hover.com, ns2.hover.com

QNr.	Domain	Type	NS used
1	com	NS	b.root-servers.net (2001:500:200::b)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2	ns1.hover.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: ns1.tucows.com, ns2.tucows.com, ns3.tucows.com
	Answer: ns1.tucows.com 216.40.47.233, 2604:4000:0:d:216:40:47:233
	Answer: ns2.tucows.com 2604:4000:2000:2000:64:98:148:121, 64.98.148.121
	Answer: ns3.tucows.com 216.40.47.234, 2604:4000:0:d:216:40:47:234
3	ns2.hover.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: ns1.tucows.com, ns2.tucows.com, ns3.tucows.com
	Answer: ns1.tucows.com 216.40.47.233, 2604:4000:0:d:216:40:47:233
	Answer: ns2.tucows.com 2604:4000:2000:2000:64:98:148:121, 64.98.148.121
	Answer: ns3.tucows.com 216.40.47.234, 2604:4000:0:d:216:40:47:234
4	ns1.hover.com: 216.40.47.26	A	ns1.tucows.com (2604:4000:0:d:216:40:47:233)
5	ns1.hover.com: 2604:4000:0:d:216:40:47:26	AAAA	ns1.tucows.com (2604:4000:0:d:216:40:47:233)
6	ns2.hover.com: 64.98.148.13	A	ns1.tucows.com (2604:4000:0:d:216:40:47:233)
7	ns2.hover.com: 2604:4000:2800:d:64:99:148:13	AAAA	ns1.tucows.com (2604:4000:0:d:216:40:47:233)

14. CAA - Entries

Domainname	flag	Value	∑ Queries
yttriodlithiuranium.synology.me	0	no CAA entry found	1
dsm.lymphtofu.com			1
lymphtofu.com	0	no CAA entry found	1
synology.me	0	no CAA entry found	1
com	0	no CAA entry found	1
me	0	no CAA entry found	1

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
lymphtofu.com	sl-verification=bzgseqddbwzuftcqhawuhcwgihmnxa	ok	1
lymphtofu.com	v=spf1 include:simplelogin.co ~all	ok	1
dsm.lymphtofu.com			1
_acme-challenge.dsm.lymphtofu.com		Name Error - The domain name does not exist	1
_acme-challenge.dsm.lymphtofu.com.lymphtofu.com		perhaps wrong	1
_acme-challenge.yttriodlithiuranium.synology.me		missing entry or wrong length	1
_acme-challenge.dsm.lymphtofu.com.dsm.lymphtofu.com		Name Error - The domain name does not exist	1
_acme-challenge.yttriodlithiuranium.synology.me.yttriodlithiuranium.synology.me		Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	DNS-error	num Answers	Status	Description
SPF	TXT	dsm.lymphtofu.com					32768	TXT expected, but CNAME found. CNAME not allowed, only TXT queries are allowed. See RFC 7208, 4.4.

17. Cipher Suites

No results

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

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Last Result: https://check-your-website.server-daten.de/?q=dsm.lymphtofu.com - 2026-07-08 01:44:39

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