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https://dropbox.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.dropbox.com/
200https://dropbox.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://dropbox.com/ → https://dropbox.com/

Consistent

B
TLS Certificate Expiry & Recommendations
181 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

181
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
1 A records, 84 ms lookup
PASS
1 A records, 84 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 162.125.248.18
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2620:100:6040:18::a27d:f812
Info::
4 nameserver(s) configured
Got: ns-1949.awsdns-51.co.uk, ns-1162.awsdns-17.org, ns-315.awsdns-39.com, ns-564.awsdns-06.net
Info::
2 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 84 ms
Got: 84 ms
A162.125.248.18
AAAA2620:100:6040:18::a27d:f812
CNAME—
NSns-1949.awsdns-51.co.uk, ns-1162.awsdns-17.org, ns-315.awsdns-39.com, ns-564.awsdns-06.net
MX
10 mxb-001ed902.gslb.pphosted.com
10 mxa-001ed902.gslb.pphosted.com
TXT
google-site-verification=dvbnC9kulo9yolnth_U5l7fMneacmwsmc7T-amaztiY
stripe-verification=abd8d702e1361e583deb9f1085ca164782f13f205b1b8b04225f9bac41c3...
miro-verification=06f0d83f07b5b7c1936df29f6dc8a6a11cf82d08
hubspot-domain-verification=Y2NiYzY0YjktYzI1MC00NDg5LWI5ZTYtZWY4ZWQ1ZDEwNjdh
SPF v=spf1 ip4:45.58.64.0/20 ip4:185.45.8.0/22 ip4:162.125.0.0/16 ip4:199.47.216.0/2...
google-site-verification=leXlkd4GKqaMP-t93sX2D_mNej1qyME73hyCvyjkbmA
google-site-verification=6Gs0C-CwJui707tVZirEFGKvKfGtwwZf2Snzz0-2nUQ
parallels-domain-verification=c22a91cd65da42ee92515d4d96940a8caed8b947d0ed4a37b1...
docker-verification=215c893f-0bb3-4887-87a2-152ae8636422
atlassian-domain-verification=yjrZDQ/hCS3k4pk87lelfsKb7+aOLpQPPgowWw/RHEwDCvNo8z...
MS=ms91256510
mgverify=32a6a13661e86bff81acaf247c1dd6c5991bccc6a77dbe49f078deef4d61979c
stripe-verification=fc5d818b64666e2f2da6e857d432a8278df3bcadcb7dce142103841f6045...
openai-domain-verification=dv-taySZvuNYfU5nkRTfwxixP7F
hcp-domain-verification=70f13e6db06700814cb6a41bc0b14c0b02d972a58a16bc566918d50e...
google-site-verification=vPdXnwB_snnJ8dqzD0OFEhiy3Vjq2l7qhXA-rnWR1lk
stripe-verification=5A1286A45D18E28C4909AD9CAA70017D493E1A09417FB572992366CEC23D...
stripe-verification=d0a25558a690907c8476879165000a457c5521640f0be53b0d1acf5f4c31...
jamf-site-verification=EecmGLwXK6l4sJLtg1ckwQ
infoblox-domain-mastery=d893f536feb426f7bcef35610e78c319a79a9585e03a3cbf753c589e...
zapier-domain-verification-challenge=2d9f161a-cc7a-4780-862d-04aa31320698
aws-domain-control-verification=295d3c77-d647-4042-a10b-17bc6cf2a81c
google-site-verification=E9R8qj0pQvUF7rQ3x0s0m5Oh8FGBiO-7CQt-hiPQtFs
hubspot-developer-verification=YTQ0MmYzMzItYjhhOC00YzhlLTg3ZDYtMjU3NWQ4OWY4MDNk
google-site-verification=u07OaGer3GQQDKmGdXvEnVDA7hVQJZ3nVglkGqTxnqI
citrix-verification-code=b29deae6-12fa-4939-a5b1-9585f5fc82ba
google-site-verification=eL_MhPPeLDIVMzQmUh8cQlm1zzdyZRZs7a5aVqrTPKc
google-site-verification=cPTvnO7zyyCEASSqXGDlzGgEECA-hWG7k_drsp-f9RA
docusign=c18a935e-b7a7-4ca5-a401-9f7cac288c0b
liveramp-site-verification=l9GQet4bxvwWtgD1svh_74N5vOes7buz_drCyiY-dV4
lovable_verification=oimC5YnefHVCMkPlojvq
adobe-idp-site-verification=4977108a-46c6-4763-a3cc-b23b3d87e5cc
cursor-domain-verification-me5gdt=FG4EqpnCbcfCNcVW9qV0OYu9R
notion-domain-verification=enHWmn6FFlHvaUid8AdXGKPkDn7j1VVAKudIomtvw0z
mixpanel-domain-verify=c8f954c8-17fc-42a3-925c-6ea23ee3b534
google-site-verification=8NWlYGBCOsGGZoWB62V0z-I1v92RPDYt5e2MIcIlKOk
1e6de3584eb44e3e9fde429fb262995bb3f6422cab16daeff7cba598948242b8
stripe-verification=ADB471381BCF8F6CF5635864612A5C41B09F3AD2E69F0BC675D96AB24CCC...
stripe-verification=7f4c0115f99ee7bc4ed67beff4365dd6b29ec5e4cfca03b874d2de54fb17...
google-site-verification=2ZBxb1JI0xc_p5crqO_FHyV6OO3iYuvryuZj4nUNCEc
aws-domain-control-verification=fa66314d-b786-43ac-ba00-a2fc8c8da6c2
google-site-verification=2_3MpLNP3RT2WDZTWn2VErDq0zTl7-IOZMviotkEhEQ
slack-domain-verification=1qkjOc6gwuxLaFmX90NDKDiQVw0k4aNHyeT15kdt
docusign=a3cf77c9-f563-4c9b-8cbb-73c5322feb8e
apple-domain-verification=6wGFrdfZ2TC4HlEk
google-site-verification=rGECt1BQW-vtsJ-FgNwFpxTiTMc2DdQ9ZxAwT8nmbTE
CAALookup not available with standard resolver
Resolved in 84 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 363 ms total
PASS
1 redirect(s), 363 ms total
Info::
Single redirect
Got: https://dropbox.com → https://www.dropbox.com/ (301)
Info::
WWW normalization redirect

https://dropbox.com

53 ms · HTTP/1.1

301

https://www.dropbox.com/

310 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://dropbox.com30153 msHTTP/1.1envoy
2https://www.dropbox.com/200310 msHTTP/1.1envoy

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (16 ms)
PASS
IPv6 reachable (16 ms)
Info::
IPv6 is configured and reachable at 2620:100:6040:18::a27d:f812
Got: 16 ms connect
IPv6 Ready
AAAA Records 2620:100:6040:18::a27d:f812 Connection Reachable (16 ms)
A+
Crawlability
robots.txt present, sitemap with 10 URLs
PASS
robots.txt present, sitemap with 10 URLs
Info::
robots.txt is present
Got: 829 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 10 entries
Info::
Sitemap index with 10 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 829 B Sitemaps referenced 1 User-agents *, Twitterbot, facebookexternalhit Blocking No — crawling allowed
User-agent: Twitterbot
Disallow:

User-agent: facebookexternalhit
Allow: /s/
Allow: /sh/
Allow: /scl/
Allow: /sc/

User-agent: *
Allow: /static/css/
Allow: /static/images/
Allow: /static/js/
Allow: /llms.txt
Disallow: /static/
Disallow: /password_expired
Disallow: /help/sl
Disallow: /help/vodafone
Disallow: /home*
Disallow: /package_files_uploaded_via_chrome
Disallow: /photos/app_store_link/
Disallow: /recover*
Disallow: /sharing/*
Disallow: /sharing/folders*
Disallow: /sharing/files*
Disallow: /requests*
Disallow: /account*
Disallow: /referrals*
Disallow: /downgrade*
Disallow: /developers-v1
Disallow: /developers/downloads/sdks/
Disallow: /developers/whats_new
Disallow: /reengageoptout/*
Disallow: /preview/
Disallow: /s/
Disallow: /sh/
Disallow: /scl/
Disallow: /sc/


Sitemap: https://www.dropbox.com/sitemapindex.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 10 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
dropbox.com — via MarkMonitor Inc., 31 years, 3 months old
PASS
dropbox.com — via MarkMonitor Inc., 31 years, 3 months old
Info::
Domain registered until Jun 27, 2027 (1 years, 2 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: MarkMonitor Inc.
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Domain expiry

376 days

June 27, 2027

SSL certificate

181 days

Issued by DigiCert Inc

Domain age

31 years, 3 months

Registered June 28, 1995

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2620:100:6040:18::a27d:f812

Registrar

MarkMonitor Inc.

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar MarkMonitor Inc.
Created June 28, 1995 (31 years, 3 months ago)
Expires June 27, 2027 (1 years, 2 months)
Last Updated May 26, 2025
Name Servers ns-1162.awsdns-17.org, ns-1949.awsdns-51.co.uk, ns-315.awsdns-39.com, ns-564.awsdns-06.net
DNSSEC Not enabled
Hosting
IP Address 2620:100:6040:18::a27d:f812
Data source: rdap (0.1s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 73 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
21 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
16 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
19 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
74 ms
Total Time Total request time from DNS lookup through full response.
74 ms

Connection waterfall

DNS Lookup 21 ms TCP Connect 16 ms TLS Handshake 19 ms Server Processing 17 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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