Free DNS Time-to-Live Diagnostic Tool

DNS TTL & Caching Health Checker

Analyze your domain's DNS TTL settings under two key lenses: Everyday Page Load Latency vs. Server Migration Readiness.

Caching Performance Score
30 / 100
Evaluates lookup speed vs cache efficiency
Shortest TTL
18 seconds
Fastest record expiration duration
Longest TTL
1 day (86400s)
Maximum cached retention duration
Records Inspected
92
A, AAAA, CNAME, MX, TXT, NS, SOA
1. Everyday Load Performance
Sub-optimal Latency
Sub-optimal DNS Caching (High Lookup Latency)
Your DNS records have short TTL values. Browsers and ISPs are forced to re-query your DNS frequently, adding unneeded connection latency for visitors unless you are actively migrating servers.
2. Server Migration Agility
Migration Ready
Ready for Fast Server Migration
Your primary web resolution records (A/CNAME) have low TTLs. If you switch web hosts or server IPs today, DNS updates will propagate globally within minutes with minimal downtime.

DNS Record TTL Inventory (siriusxm.com)

Host / Record Type Target / Value TTL (Duration) Everyday Performance Lens Migration Lens
siriusxm.com A
209.196.203.234
4.8 minutes (286s) Lookup Overhead Instant Propagation
siriusxm.com NS
ns01.sxmentsvcs.com
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
ns02.sxmentsvcs.com
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
ns03.sxmentsvcs.com
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
ns04.sxmentsvcs.com
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
dns1.p06.nsone.net
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
dns2.p06.nsone.net
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
dns3.p06.nsone.net
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com NS
dns4.p06.nsone.net
1 hour (3600s) Optimal Speed 2h Prep Needed
siriusxm.com SOA
Primary NS: dns1.p06.nsone.net (Admin: hostmaster.nsone.net)
1 day (86400s) Optimal Speed 24h Prep Needed
siriusxm.com MX
[Priority 5] 205.220.176.4
5 minutes (300s) Lookup Overhead Instant Propagation
siriusxm.com MX
[Priority 5] mx0a-0051e301.pphosted.com
5 minutes (300s) Lookup Overhead Instant Propagation
siriusxm.com MX
[Priority 5] mx0b-0051e301.pphosted.com
5 minutes (300s) Lookup Overhead Instant Propagation
siriusxm.com MX
[Priority 5] 205.220.164.4
5 minutes (300s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=46db797e734d25037c8a1966048d4d0a26f34600f23375c9ab8f1b327dc5b023
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=47c5a8c489eea6dc578dfd12d08d3b7accf87c7729c8958144a35f50361cc92a
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=51A1A6D8E03F4C864C6D8DF919700B734B99CA03E76590F15B407A29380B606D
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=6151a13c2e26e26166de3da9cbc43b4b418109e806e0fef941a34da28edc06ca
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=7700e585bc13984d32505fc0743dd1742a7b00ab8f89fd43edbb64b7e86eb3df
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=9ac87819ed1e8c4c43fb4806e46ee7ac5135b3ac5eb80fc1ceca8ec0bf1fd7c0
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=9afcd9b96859582b2edf39640758f0a7ca9bbbc04fc0acd4eda69d964978923b
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=9b9a0d4b86b5283cb08007350937985cedf9d7b130b16144dc5abf75bb18af9e
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=a2efa4b173f85f9b16a2fe262a5d7fa95a0b18f0ba884723050e917033a5af28
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=b7edf88636d477ae4501df1dbebcda1b9f3eb5f895d94a5dcaa35715fd8525a7
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=eb9cdfa80af377c6421610f8153fd4151acb46fe9414e78a4ce90c2d0d82f93a
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
stripe-verification=eef61a09f3c1c4f6890acce9bff70c102c0c389cc77e9970a3b2a17e582f3b27
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
lG349MoE2wDtW9Rm5f4xXymdwAKwVdBQfMQO2/Jr82/ydYTA02hxqkGBs/HD1s40UmyYs/aqHC5OXIzvi0sy3g==
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
wiz-domain-verification=6654b1dce679226262e7a9100e4fe29fcf0d7344c4a1c48e017dbafa6bc85668
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
ciscocidomainverification=3ab0e72f9f12fd1a3deddf918f1d1bd98809ef2e398170d815419aa5cb2201e
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
drift-domain-verification=d6cb79b5862912fed2b39ef178ba05686c7923ac14df7ce9a9b33100466da409
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
adobe-idp-site-verification=07eb583b60ecdc4807f69c091c773a88977a0528389f11a3db0a85317b686884
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
adobe-idp-site-verification=5a530c92b9164402449dcd6fcbf76fac4c48b44eea5d1daee0cd35d4e1703985
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
webexdomainverification.4C675B8AC948B136E053AB06FC0A3F65=78bc48c4-f329-4445-b1ad-f49ebd7fb474
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
atlassian-domain-verification=suALAhcWjB6Eq0SuX424kLGZ8kMs8yfsj4LDWz6QHyorTk7BzUFfbXXgI4pyznZy
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
postman-domain-verification=d1caeda0f84377e45d08fbd4b3c577deceb4526435f7f3f114a1c78d61757eb0f958e6fb219e33672bb930ba432d66cfae6e01b79a9c302485fc8a9d8ee1287f
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
u82dc8btbp
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
49n3l57f1mktjid95hab7rbqik
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
670a64ufsh58n96gfgsrko71l3
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
9kl8q3cb3k4vnlq6ue3ajo8rh0
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
afvt39buekdfv8k0h6btsas0b1
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
gravupem1j92sarnac3oj77acg
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
hvlsg1l323820htmuo7i4oo0ih
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
ilpqvnmk9uti87evf0jci54us3
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
j4fgi3u009ucbdt2i6ccrummok
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
mva2i3k009thcac7eq9aeo0ouf
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
nfeendn81di5o1t51fknrn22qc
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
qf7fmfqldja6ti8vd1d820tjd7
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
r5eng4rijpg5m4rpdq2l7ji6pg
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
rdsu1pibv0oq2sj3clj8dj00l8
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
sk0v10com90p608hfrca9voptj
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
u7guqmtr63d1i9o5vkdljbvnb8
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
_o3fcctv2mgo53xfa173arlydyas1x7i
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
klaviyo-site-verification=LuhHZj
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
dropbox-domain-verification=3iy9nlgaxnjm
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
apple-domain-verification=ZU4BsEg2F7LCWdL5
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
jamf-site-verification=_uBHarI9mx1aqzkizk43-g
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
cloudhealth=d09ff8ab-4c38-44b4-86d6-734c437547f1
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
1password-site-verification=PVMKPQZITRH5FKQN5WY27J6ZWI
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
airtable-verification=92001d7da07339e0b17a973f2faaa71b
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
amazonses:QcKJFGArdhL33/C4lz1GRpQV5CtKuM1IpKbfpaHNcQ0=
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
fastly-domain-delegation-Ynmg10GF72y-700566-2023-09-27
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
openai-domain-verification=dv-iA3oHndMuMKqVLP3NYQU5366
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
jetbrains-domain-verification=c5xibuu801g0pvg09vyi6ukcw
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
adobe-sign-verification=40e90e2264765645c1ee28a12e400df3
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
docker-verification=06085cf3-f993-49ad-8942-4bd89c5a7644
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
shopify-verification-code=vP5tlUAQjFH28J0j5oubKcPxjh26Tk
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
mongodb-site-verification=LvSnN3b93tGpCWZobwGUGaQYHs3k5i6F
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
make-domain-verification=9064d3c6-9fc3-4be4-8f20-fff810a589a8
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
onetrust-domain-verification=a5d60afeec764520a934a81a9a3d1f6d
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
onetrust-domain-verification=ce5f1c26b40a48b683704df001c96ede
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
anthropic-domain-verification-x1t41n=oJrAPmLjUVeCGecPbUSGDlvG6
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
globalsign-domain-verification=29E9496008694A5A867EAE4A234E0CFB
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
globalsign-domain-verification=C97E301790A57318A1B84BECDA025B52
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
globalsign-domain-verification=EABC8FE4231E6C86A5FC51D61F426878
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
dtm-domain-verification=7DRaunwpgEAhOzYEt1EuyWMebcjtK1VbQkIwJRc91Pg
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
monday-com-verification=Y7tba9sDRtLGwJrmA-A2bxVKMIOuhp5g9YnzcMJifOo
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
google-site-verification=1dhg4RzNvG271DgpDsW99nlvQ2nm5UujRL564eWS3_k
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
google-site-verification=QwZ6yHoQEuurPDm1PqFHTcCtf6eFNGqbDBgtAO5A3Y8
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
google-site-verification=_dOdWZ_GQ2gpF8Nh4aoXMMvCwjTbhHZ2VrZA47HgpAQ
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
google-site-verification=aGQ9TBColIEZfdhgD4TcWvd5AxTHRZ3DbIDsgCh2ATw
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
liveramp-site-verification=3auN45Pf2H9Obu6SoSX-izAUSRjBnVPQbEnXgyJK8MQ
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
h1-domain-verification=4VJZWTx7ytgaQEQBxifRvWGJAAWNaSQ4EM3mRvdiKeYjARfQ
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
zapier-domain-verification-challenge=59f9fe3e-d138-4a5e-80d5-06bf4f207817
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
intersight=9f78237bb9ce583ca9157f0be6c3b7d238bd208bd25579a8d531e5cea69b3e47
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com TXT
hubspot-domain-verification=OWY3NTczMDUtYzQ1OS00MGUyLWJlODQtNDI5NjdlNjcxYWY1
15 minutes (900s) Lookup Overhead Instant Propagation
siriusxm.com A
209.196.203.234
5 minutes (300s) Lookup Overhead Instant Propagation
e216167.dsca.akamaiedge.net A
184.25.255.51
20 seconds Lookup Overhead Instant Propagation
e216167.dsca.akamaiedge.net A
184.25.255.41
20 seconds Lookup Overhead Instant Propagation
www.siriusxm.com CNAME
www.siriusxm.com.edgekey.net
23.9 hours (86146s) Optimal Speed 24h Prep Needed
e216167.dsca.akamaiedge.net AAAA
2600:1404:1200:45::b819:ff29
18 seconds Lookup Overhead Instant Propagation
e216167.dsca.akamaiedge.net AAAA
2600:1404:1200:45::b819:ff33
18 seconds Lookup Overhead Instant Propagation

Note: This may not be all your DNS records — only the records we were able to find.

Actionable Recommendations & Best Practices
[Performance] Increase TTL for Everyday Traffic

If you are not currently migrating servers, increase your A, AAAA, and CNAME TTL values to at least 3,600s (1 hour) or 86,400s (24 hours). This allows ISPs and browsers to cache your DNS response, cutting initial page connection time.

[Performance] Eliminate Ultra-Low TTLs (< 300s)

Ultra-low TTLs cause excessive DNS query traffic and can bottleneck user connection times. Unless backed by a high-frequency global DNS edge/anycast provider (like Cloudflare or Route53), raise these TTLs.

[Best Practice] Post-Migration TTL Restoration

Once your server migration is complete and verified stable for 24 hours, remember to raise your TTL values back to 3,600s or 86,400s to regain optimal DNS caching performance.

Understanding DNS TTL: Performance vs. Agility

DNS Time-to-Live (TTL) is a numerical setting (measured in seconds) attached to every DNS record. It dictates how long recursive DNS resolvers, ISPs, and web browsers are permitted to cache your server's IP address before requesting a fresh update.

Why Low TTL Hurts Everyday Speed

When you set a low TTL (e.g. 300s / 5 minutes) on a domain that is not migrating, every returning visitor's browser or local ISP must continuously send fresh DNS queries to resolve your server IP. This adds an extra 20ms to 150ms round-trip latency to page load times. For everyday stability, TTLs should be set to 3,600s (1 hour) or 86,400s (24 hours).

How to Manage TTL for Zero-Downtime Migration

If you are planning to switch web hosts or move to a new server IP, follow this two-step process:
1. 24 hours BEFORE migration: Reduce your A and CNAME TTL values to 300s (5 minutes).
2. 24 hours AFTER migration: Once the new IP is verified stable, raise your TTL back to 3,600s or 86,400s to regain maximum DNS caching speed.