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https://videojs.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
91
GRADE
A
FIX
0
REVIEW
3
PASS
5
INFO
1
Probed from Madrid, Spain
200 OK
Checks
9
5 PASS 3 REVIEW
C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
TLS Certificate Expiry & Recommendations
47 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

47
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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
B
CDN & Delivery
Netlify
REVIEW
Netlify
Info::
Site is served via Netlify CDN
Got: x-nf-request-id: 01KPRZ1H3A18G4W5VER6MJZD7J
CDN Detected: Netlify
Provider Netlify Evidence x-nf-request-id: 01KPRZ1H3A18G4W5VER6MJZD7J
A+
DNS Records
2 A records, 30 ms lookup
PASS
2 A records, 30 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 35.157.26.135, 63.176.8.218
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: dns4.p07.nsone.net, dns1.p07.nsone.net, dns3.p07.nsone.net, dns2.p07.nsone.net
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: 30 ms
Got: 30 ms
A35.157.26.135, 63.176.8.218
AAAA—
CNAME—
NSdns4.p07.nsone.net, dns1.p07.nsone.net, dns3.p07.nsone.net, dns2.p07.nsone.net
MX—
TXT
google-site-verification=6t4vkD9F6YX5dx1Z-mju1HJ8pK60bkRZl5ehtk4YnLE
CAALookup not available with standard resolver
Resolved in 30 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://videojs.org

https://videojs.org

106 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://videojs.org200106 msHTTP/1.1Netlify
A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 62 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
Sitemap index with 1 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 62 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *

Sitemap: https://videojs.org/sitemap-index.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 1 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: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.videojs.org/
200https://videojs.org/

Preferred variant: non-www

HTTP → HTTPS

301http://videojs.org/ → https://videojs.org/

Consistent

A+
HTTP Probe Timing
Total 242 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
34 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
35 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
36 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
140 ms
Total Time Total request time from DNS lookup through full response.
242 ms

Connection waterfall

DNS Lookup 34 ms TCP Connect 35 ms TLS Handshake 36 ms Server Processing 36 ms Content Transfer 102 ms
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

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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