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
20 seconds
Fastest record expiration duration
Longest TTL
1 hour (3600s)
Maximum cached retention duration
Records Inspected
38
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 (gap.com)

Host / Record Type Target / Value TTL (Duration) Everyday Performance Lens Migration Lens
gap.com A
184.29.98.41
20 seconds Lookup Overhead Instant Propagation
gap.com NS
a13-64.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com NS
a16-65.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com NS
a28-67.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com NS
a2-66.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com NS
a9-64.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com NS
a1-185.akam.net
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com SOA
Primary NS: a1-185.akam.net (Admin: hostmaster.gap.com)
1 hour (3600s) Optimal Speed 2h Prep Needed
gap.com MX
[Priority 10] gap-com.mail.protection.outlook.com
15 minutes (900s) Lookup Overhead Instant Propagation
gap.com TXT
dell-technologies-domain-verification=gap.com_b90e7845-1e8b-49c8-8a90-2681b6a4f200_1791645821
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
atlassian-domain-verification=x9GW3onDOKZ7MFNafXEgvQi+S4RzO27KnoSyw3hUvuwTzifEjbaKjttYfS0l7KN5
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
paloaltonetworks-site-verification=c518f078247ea35d81894e2139a0f6c73f3616e1cec73d488ab178effa510482
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC590vQvM5KtKOx7xcgzaWhik4rgOdYkA3yKU32KY6YZwmEU7MkkfzXYcJhyWnWqKgr84Y9GDwiNIHEWe6PQCsFWWLo5IRTECKnMSzW3JoNpLxak3heXKm3RSmMI1pfrVgWR3hE5Q4qXathW9SBTM8W+WnyAt9XzATAoqkQ7P2YQwIDAQAB
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
v=spf1 ip4:70.37.176.254 ip4:70.37.180.254 ip4:199.71.239.178 ip4:67.216.183.10 ip4:8.43.178.222 ip4:199.71.239.52 ip4:147.154.3.13 ip4:147.154.3.185 include:spf.protection.outlook.com include:_spf1.gap.com ip4:13.89.141.254/31 ip4:52.247.38.92/31 ~all
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
9p3qkdfqz85jlbstbxh607s7yy30s8m9
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
klaviyo-site-verification=Rt65qY
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
klaviyo-site-verification=S7gNvy
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
klaviyo-site-verification=Xmy6dS
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
8d38ab53-bf53-41e8-9405-ff145a5a881d
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
2NE4ym4AovyJkgcWsNTKsGsv/1+O8RzvRKU8WE4wl6s=
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
cAnBPRJmU/2NqR1pC6vDXl6TLHnzxkOVgUoFqdN/THQ=
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
h3D755k7xR7BZvi0g6DsVARk9f4pWWArCC7Ht2g5p80=
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
jamf-site-verification=neCa8CEo-SNp0IPgP9LnFg
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
bitrise-verification=fee42a3c1099ab1b-3IqJzjcfqZpS
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
openai-domain-verification=dv-vYMD7jPLfaGFJlMPfHek4PVN
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
anthropic-domain-verification-00ym4v=rXfN88n8BCZa5SP2QOuyq4vvT
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
anthropic-domain-verification-18awfe=weyvhaCpW7LXWlHgh4ilZmX7O
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
anthropic-domain-verification-vfmvxm=rUs1uDHPdJiz05BXAtAuBh4MF
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
new-relic-domain-verification=8bc1c423f2b649d59eaf599a79e4b2ea
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
work-accounts-domain-verification=WIHwRsQudRFHQrJcyEjpTqy1kEKnHR
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
google-site-verification=ev_CY7lXAB9mBuu8ITNd-DjzUW6--V9TYQQ-7Vv_8ZE
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
apple-domain-verification=2qINnZFGpE7HmCqkKlgNpY6s6KDtqDzGpiIZwRyANKQ
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
apple-domain-verification=e7oR1pbkyZ03jFMG26h3lGzEeoz8ANXUtI1qHCLaphM
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
_saml-domain-challenge.dfb69ddb-19d5-4365-809a-02a77b6de7f5.gap.gap.com
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
bv-domain-verification=d569c6251ba24951fd246bf4e63e68c5fe055a55e1cb6bfce0f341c5aa6d19ac
10 minutes (600s) Lookup Overhead Instant Propagation
gap.com TXT
hcp-domain-verification=f6963fc3a9a783f4c569052a6aa66e5241f25d0644a253cc92ce2fc007cdde2d
10 minutes (600s) Lookup Overhead Instant Propagation
e12405.x.akamaiedge.net A
184.29.98.41
20 seconds Lookup Overhead Instant Propagation
www.gap.com CNAME
www.gap.com.edgekey.net
1 hour (3600s) Optimal Speed 2h Prep Needed

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.