Skip to content
https://is.gd

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
93
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Amsterdam, Netherlands
403 Forbidden
Checks
9
6 PASS 3 REVIEW
C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 0 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 0 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
TLS Certificate Expiry & Recommendations
85 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

85
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: AMS)
Got: cf-ray: 9efede8d7bee9918-AMS
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9efede8d7bee9918-AMS
A+
DNS Records
3 A records, 4 ms lookup
PASS
3 A records, 4 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 104.25.234.53, 104.25.233.53, 172.67.83.132
Info::
Has 3 IPv6 (AAAA) record(s)
Got: 2606:4700:20::ac43:5384, 2606:4700:20::6819:ea35, 2606:4700:20::6819:e935
Info::
2 nameserver(s) configured
Got: gwen.ns.cloudflare.com, jerry.ns.cloudflare.com
Info::
5 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::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 4 ms
Got: 4 ms
A104.25.234.53, 104.25.233.53, 172.67.83.132
AAAA2606:4700:20::ac43:5384, 2606:4700:20::6819:ea35, 2606:4700:20::6819:e935
CNAME
NSgwen.ns.cloudflare.com, jerry.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
google-site-verification=DfMNV5p3KeMmSRMGAc0XtF4iRYfjlaE4VsPgat9073E
CAALookup not available with standard resolver
Resolved in 4 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
0 redirect(s), 17 ms total
PASS
0 redirect(s), 17 ms total

https://is.gd

17 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://is.gd40317 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2606:4700:20::ac43:5384, 2606:4700:20::6819:ea35, 2606:4700:20::6819:e935
Got: 1 ms connect
IPv6 Ready
AAAA Records 2606:4700:20::ac43:5384, 2606:4700:20::6819:ea35, 2606:4700:20::6819:e935 Connection Reachable (1 ms)
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

403https://www.is.gd/
200https://is.gd/

HTTP → HTTPS

301http://is.gd/ https://is.gd/

Consistent

A+
Domain Intelligence
is.gd — via Gandi SAS, 18 years, 10 months old
PASS
is.gd — via Gandi SAS, 18 years, 10 months old
Info::
Domain registered until Sep 12, 2028 (2 years, 5 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: Gandi SAS
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

791 days

September 12, 2028

SSL certificate

85 days

Issued by Google Trust Services

Domain age

18 years, 10 months

Registered September 12, 2007

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:20::ac43:5384

Registrar

Gandi SAS

Unlocked 2 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 Gandi SAS
Created September 12, 2007 (18 years, 10 months ago)
Expires September 12, 2028 (2 years, 5 months)
Last Updated August 31, 2023
Name Servers gwen.ns.cloudflare.com, jerry.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:20::ac43:5384
Data source: rdap (0.2s)

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 16 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
2 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.
9 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
16 ms
Total Time Total request time from DNS lookup through full response.
16 ms

Connection waterfall

DNS Lookup 2 ms TCP Connect 1 ms TLS Handshake 9 ms Server Processing 4 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.

Send Feedback