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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Singapore, Singapore
200 OK
Checks
9
5 PASS 3 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.

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 66 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 66 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /x/
Disallow: /std/
Disallow: /add_module

sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
HTTP Probe Timing
Total 1285 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
213 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
213 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
216 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
856 ms
Total Time Total request time from DNS lookup through full response.
1.29 s

Connection waterfall

DNS Lookup 213 ms TCP Connect 213 ms TLS Handshake 216 ms Server Processing 214 ms Content Transfer 429 ms
B
TLS Certificate Expiry & Recommendations
80 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

80
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, 74 ms lookup
PASS
1 A records, 74 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 69.67.170.170
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: 2602:f70f::1
Info::
4 nameserver(s) configured
Got: ns-cloud-c2.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c3.googledomains.com
Info::
6 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: 74 ms
Got: 74 ms
A69.67.170.170
AAAA2602:f70f::1
CNAME
NSns-cloud-c2.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c3.googledomains.com
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
15 mxcbid3fa2xdcnxzi54yx7s24zg7mxdlgiyz27okxampj5rpxxva.mx-verification.google.com
TXT
DirectFedPassiveSignInUri=https://accounts.google.com/o/saml2/idp?idpid=C00i63oz...
google-site-verification=cKm9DNhH8cPJM4iDzag5nutN_-rMmVtNrZTS1eagrc0
MS=ms55636499
google-site-verification=mK20W9JDnIjbXLAFnqJmnnBB_iP85coianQ22im3z2g
rippling-domain-verification=41aba443cffed29e
DirectFedAuthUrl=https://accounts.google.com/o/saml2/idp?idpid=C00i63oz4
slack-domain-verification=t1y5dJlFS0h8GhBl7rJNtrTPxJC1GucfYSkyzVZi
SPF v=spf1 include:_spf.google.com include:amazonses.com include:spf.mailjet.com ~al...
google-site-verification=wYdcDfJ1JWHCGhiLfzLCb81tOs_JnyCnqiJkjMM2Dy8
stripe-verification=49e875edde4b54944b80255bb7b0af6fb0df6526c57effa6e5c8c4a7a152...
CAALookup not available with standard resolver
Resolved in 74 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://deno.com

https://deno.com

660 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://deno.com200660 msHTTP/1.1deployd
A+
IPv6 Readiness
IPv6 reachable (209 ms)
PASS
IPv6 reachable (209 ms)
Info::
IPv6 is configured and reachable at 2602:f70f::1
Got: 209 ms connect
IPv6 Ready
AAAA Records 2602:f70f::1 Connection Reachable (209 ms)
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

302https://www.deno.com/
200https://deno.com/

Preferred variant: non-www

HTTP → HTTPS

301http://deno.com/ https://deno.com/

Consistent

A+
Domain Intelligence
deno.com — via NameCheap, Inc., 27 years, 5 months old
PASS
deno.com — via NameCheap, Inc., 27 years, 5 months old
Info::
Domain registered until Mar 9, 2030 (3 years, 11 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: NameCheap, Inc.
Domain expiry

1336 days

March 9, 2030

SSL certificate

80 days

Issued by Let's Encrypt

Domain age

27 years, 5 months

Registered March 9, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2602:f70f::1

Registrar

NameCheap, Inc.

Lock status unknown 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
Registrar NameCheap, Inc.
Created March 9, 1999 (27 years, 5 months ago)
Expires March 9, 2030 (3 years, 11 months)
Last Updated July 21, 2022
Name Servers ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com
DNSSEC Not enabled
Hosting
IP Address 2602:f70f::1
Data source: rdap (0.3s)

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

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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