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https://www.notion.so

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
1
PASS
7
INFO
0
Probed from Sao Paulo, Brazil
301 Moved Permanently
Checks
9
7 PASS 1 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2602:f79a::2, 2602:f79a::1
Info::
IPv6 connection error
Got: dial tcp6 [2602:f79a::2]:443: connect: no route to host
IPv6 Misconfigured
AAAA Records 2602:f79a::2, 2602:f79a::1 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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

Certificate validity

42
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
2 A records, 20 ms lookup
PASS
2 A records, 20 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 208.103.161.1, 208.103.161.2
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2602:f79a::2, 2602:f79a::1
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 20 ms
Got: 20 ms
A208.103.161.1, 208.103.161.2
AAAA2602:f79a::2, 2602:f79a::1
CNAME—
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 20 ms

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A
Redirect Chain
1 redirect(s), 679 ms total
PASS
1 redirect(s), 679 ms total
Info::
Single redirect
Got: https://www.notion.so → https://www.notion.com/ (301)
Info::
Redirect overhead: 679 ms total
Got: 679 ms
Info::
Cross-domain redirect detected

https://www.notion.so

218 ms · HTTP/1.1

301

https://www.notion.com/

460 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.notion.so301218 msHTTP/1.1cloudflare
2https://www.notion.com/200460 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 201 URLs
PASS
robots.txt present, sitemap with 201 URLs
Info::
robots.txt is present
Got: 1136 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 201 entries
Info::
Sitemap index with 201 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1136 B Sitemaps referenced 11 User-agents *, BLEXBot, AhrefsBot, Amazonbot, SemrushBot, dotbot Blocking No — crawling allowed
# Notion is hiring! 
# Check out our open roles at https://www.notion.so/careers
	
User-agent: *
Allow: /
Disallow: /invite/
Disallow: /*/invite/
Disallow: /templates/search?query=*
Disallow: /*/templates/search?query=*
Disallow: /experiment/*
Disallow: /*/experiment/*
Disallow: /lp/webinars/
Disallow: /lp/webinars/*
Disallow: /_vercel/insights/view
Disallow: /embed/*
Disallow: /*/embed/*
	
User-agent: BLEXBot
Disallow: /

User-agent: AhrefsBot
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: dotbot
Disallow: /

Sitemap: https://www.notion.com/sitemap.xml
Sitemap: https://www.notion.com/blog/sitemap.xml
Sitemap: https://www.notion.com/customers/sitemap.xml
Sitemap: https://www.notion.com/help/sitemap.xml
Sitemap: https://www.notion.com/md/sitemap.xml
Sitemap: https://www.notion.com/pages/sitemap.xml
Sitemap: https://www.notion.com/product/sitemap.xml
Sitemap: https://www.notion.com/releases/sitemap.xml
Sitemap: https://www.notion.com/use-case/sitemap.xml
Sitemap: https://sitemaps.notion.com/sitemap-categories.xml
Sitemap: https://sitemaps.notion.com/sitemap-collections.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 201 entries Valid XML Yes
Child Sitemaps:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.notion.so/
301https://notion.so/

Preferred variant: www

HTTP → HTTPS

301http://www.notion.so/ → https://www.notion.so/

Consistent

A+
Domain Intelligence
notion.so — via 1API, 11 years, 2 months old
PASS
notion.so — via 1API, 11 years, 2 months old
Info::
Domain registered until Mar 31, 2027 (11 months remaining)
Info::
Registrar: 1API
Domain expiry

262 days

March 31, 2027

SSL certificate

42 days

Issued by Google Trust Services

Domain age

11 years, 2 months

Registered March 31, 2015

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2602:f79a::2

Registrar

1API

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar 1API
Created March 31, 2015 (11 years, 2 months ago)
Expires March 31, 2027 (11 months)
Last Updated February 25, 2026
Name Servers woz.ns.cloudflare.com, dana.ns.cloudflare.com
Hosting
IP Address 2602:f79a::2
Data source: whois (3.2s)
A+
HTTP Probe Timing
Total 217 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
3 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
7 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
217 ms
Total Time Total request time from DNS lookup through full response.
218 ms

Connection waterfall

DNS Lookup 3 ms TCP Connect 1 ms TLS Handshake 7 ms Server Processing 206 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: GRU)
Got: cf-ray: 9e81b48c3ce228b1-GRU
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9e81b48c3ce228b1-GRU
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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