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
1 minute (60s)
Fastest record expiration duration
Longest TTL
2 hours (7196s)
Maximum cached retention duration
Records Inspected
32
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 (delfi.lt)

Host / Record Type Target / Value TTL (Duration) Everyday Performance Lens Migration Lens
delfi.lt A
104.20.44.195
9.9 minutes (596s) Lookup Overhead Instant Propagation
delfi.lt A
172.66.157.134
9.9 minutes (596s) Lookup Overhead Instant Propagation
delfi.lt NS
ns-745.awsdns-29.net
2 hours (7196s) Optimal Speed 2h Prep Needed
delfi.lt NS
ns-1247.awsdns-27.org
2 hours (7196s) Optimal Speed 2h Prep Needed
delfi.lt NS
ns-1738.awsdns-25.co.uk
2 hours (7196s) Optimal Speed 2h Prep Needed
delfi.lt NS
ns-301.awsdns-37.com
2 hours (7196s) Optimal Speed 2h Prep Needed
delfi.lt SOA
Primary NS: ns-301.awsdns-37.com (Admin: awsdns-hostmaster.amazon.com)
15 minutes (900s) Lookup Overhead Instant Propagation
delfi.lt MX
[Priority 0] delfi-lt.mail.protection.outlook.com
1 minute (60s) Lookup Overhead Instant Propagation
delfi.lt TXT
stripe-verification=9cbe274b1733fc66aec43b4777dc360bae5e206208a0b90ce36e5ff9680ec815
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
v=spf1 mx ip4:91.234.200.57 ip4:91.234.200.12 include:spf.protection.outlook.com ?include:spf.mandrillapp.com ?include:_spf.mlsend.com ?include:sendgrid.net include:_spf.salesforce.com include:amazonses.com include:_spf.mailersend.net -all
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
ca3-b830ca6e032941b989a615c5b3732eae
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
1password-site-verification=BHPD2ROOG5A6BE3JJNXKOVXVXE
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
openai-domain-verification=dv-Yap1id1uUSh1W0VNtkKwM7Of
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
cursor-domain-verification-vess2e=0sX0OTUsI9M3kxJ6u8Znm4D1I
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
facebook-domain-verification=xp7aomqn17a57yvjuftdsy2s9cddgm
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
teamviewer-sso-verification=7c44f21d88c84ac0812f0da85788939f
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
anthropic-domain-verification-cakszt=m9E6WzHWDw6QAH2OaOJnLs38K
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
google-site-verification=1fucPaU0-YANfJTl9N5bIRv6xA-SX49yWyFw4IM35Zg
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
google-site-verification=C9eGLX3cSo0Tf9iJVR_daQHwBhee0XbtqKI9RuaPzmA
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
google-site-verification=IH0I8Rq_hTok36Z6nMjtI_OaALZMDOR4pobxy7pHUbc
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
google-site-verification=NJvnBvSh-uzH_BwwPJNfULGL0j0AY_9DOS-ixseH5TE
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=01481d073697f01b7172b964cf0eb2d2d11de244
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=1b4bf6e21fdc40ea7112716671fbe84db0c5b3cf
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=544fcd4f3bd3a29226cb6c2e33f2e5913d2fc8a5
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=565eb8b32ea1951e389ac4336310be889437f9a0
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=5fcb5486068d87e958d3d2a74b279d6512a97ab5
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt TXT
mailerlite-domain-verification=650f9595abb65269abbded7cd821467675dfcd74
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt A
172.66.157.134
10 minutes (600s) Lookup Overhead Instant Propagation
delfi.lt NS
ns-301.awsdns-37.com
2 hours (7187s) Optimal Speed 2h Prep Needed
www.delfi.lt.cdn.cloudflare.net A
172.66.157.134
4.8 minutes (288s) Lookup Overhead Instant Propagation
www.delfi.lt.cdn.cloudflare.net A
104.20.44.195
4.8 minutes (288s) Lookup Overhead Instant Propagation
www.delfi.lt CNAME
www.delfi.lt.cdn.cloudflare.net
4.8 minutes (288s) 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.