Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from New York, United Stated

301 Moved Permanently

Checks

4 PASS 4 REVIEW 1 FIX

CDN & Delivery

Action

No CDN detected

FIX

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.

Redirect Chain

1 redirect(s), 1633 ms total

REVIEW

1 redirect(s), 1633 ms total

Single redirect

Got: https://amazonalexa.com → https://www.amazon.com:443/alexaplus (301)

WWW normalization redirect

Redirect overhead: 1633 ms total

Got: 1633 ms

Cross-domain redirect detected

https://amazonalexa.com

34 ms · HTTP/1.1

301

https://www.amazon.com:443/alexaplus

1599 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://amazonalexa.com	301	34 ms	HTTP/1.1	awselb/2.0
2	https://www.amazon.com:443/alexaplus	200	1599 ms	HTTP/1.1	Server

See the visual redirect chain in the HTTP Probe tab →

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

Crawlability

Action

robots.txt present, sitemap with 0 URLs

REVIEW

robots.txt present, sitemap with 0 URLs

robots.txt is present

Got: 10240 bytes

sitemap.xml is present

sitemap.xml contains invalid XML

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

sitemap.xml is empty — no URLs found

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

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 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed

<!doctype html><html lang="en-us" class="a-no-js" data-19ax5a9jf="dingo"><!-- sp:feature:head-start -->
<head><script>var aPageStart = (new Date()).getTime();</script><meta charset="utf-8"/>
<!-- sp:end-feature:head-start -->
<!-- sp:feature:csm:head-open-part1 -->

<script type='text/javascript'>var ue_t0=ue_t0||+new Date();</script>
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<meta http-equiv='x-dns-prefetch-control' content='on'>
<link rel="preconnect" href="https://images-na.ssl-images-amazon.com" crossorigin>
<link rel="preconnect" href="https://m.media-amazon.com" crossorigin>
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<!-- sp:feature:csm:head-open-part2 -->
<script type='text/javascript'>
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var ue_id = '6X29NHAQPZ6CKTYJZJB0',
    ue_url = '/rd/uedata',
    ue_drfp = true,
    ue_navtiming = 1,
    ue_mid = 'ATVPDKIKX0DER',
    ue_sid = '142-2719681-2894101',
    ue_sn = 'www.amazon.com',
    ue_furl = 'fls-na.amazon.com',
    ue_surl = 'https://unagi.amazon.com/1/events/com.amazon.csm.nexusclient.prod',
    ue_int = 0,
    ue_fcsn = 1,
    ue_urt = 3,
    ue_rpl_ns = 'cel-rpl',
    ue_ddq = 1,
    ue_fpf = '//fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0DER:142-2719681-2894101:6X29NHAQPZ6CKTYJZJB0$uedata=s:',
    ue_sbuimp = 1,
    ue_ibft = 0,
    ue_lpsi = 6000,
    ue_lob = '1',
    ue_act = '-1',
    ue_dsbl_cel = 1,

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h.top!==h.self||h.frameElem

sitemap.xml 200 OK

Type URL Set URLs 0 entries Valid XML No

TLS Certificate Expiry & Recommendations

185 days until leaf cert expires — 4 issues to address

REVIEW

Certificate validity

185

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

A+

DNS Records

2 A records, 9 ms lookup

PASS

2 A records, 9 ms lookup

Resolves to 2 IPv4 address(es)

Got: 15.197.139.26, 3.33.131.74

No IPv6 (AAAA) records

8 nameserver(s) configured

Got: ns1.amzndns.co.uk, ns1.amzndns.com, ns1.amzndns.net, ns1.amzndns.org, ns2.amzndns.co.uk, ns2.amzndns.com, ns2.amzndns.net, ns2.amzndns.org

No MX records — email not configured via DNS

CAA records not checked

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

SPF record present in TXT

DNS resolution time: 9 ms

Got: 9 ms

A	15.197.139.26, 3.33.131.74
AAAA	—
CNAME	—
NS	ns1.amzndns.co.uk, ns1.amzndns.com, ns1.amzndns.net, ns1.amzndns.org, ns2.amzndns.co.uk, ns2.amzndns.com, ns2.amzndns.net, ns2.amzndns.org
MX	—
TXT	SPF v=spf1 -all
CAA	Lookup not available with standard resolver

Resolved in 9 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.

A+

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

PASS

www/non-www, trailing slash, HTTP→HTTPS

www/non-www redirect configured correctly (preferred: non-www)

HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.amazonalexa.com/

200https://amazonalexa.com/

Preferred variant: non-www

HTTP → HTTPS

301http://amazonalexa.com/ → https://amazonalexa.com:443/

Consistent

A+

Domain Intelligence

amazonalexa.com — via MarkMonitor Inc., 12 years, 11 months old, hosted on AWS

PASS

amazonalexa.com — via MarkMonitor Inc., 12 years, 11 months old, hosted on AWS

Domain registered until Jul 17, 2026 (3 months remaining)

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.

Registrar: MarkMonitor Inc.

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.

Hosting: AWS

Got: AS16509

Domain expiry

4 days

July 17, 2026

SSL certificate

185 days

Issued by Amazon

Domain age

12 years, 11 months

Registered July 17, 2013

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

3.33.131.74

Registrar

MarkMonitor Inc.

Unlocked 8 NS records

Expiry timeline

Today

+1 year

Domain expiry SSL expiry Danger zone (≤30 days)

Recommended actions

Renew the domain or enable auto-renewal to prevent accidental expiry
Enable DNSSEC to protect visitors from DNS spoofing
Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers

Registrar MarkMonitor Inc.

Created July 17, 2013 (12 years, 11 months ago)

Expires July 17, 2026 (3 months)

Last Updated April 30, 2025

Name Servers ns1.amzndns.co.uk, ns1.amzndns.com, ns1.amzndns.net, ns1.amzndns.org, ns2.amzndns.co.uk, ns2.amzndns.com, ns2.amzndns.net, ns2.amzndns.org

DNSSEC Not enabled

Hosting

IP Address 3.33.131.74

ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)

Provider AWS

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.

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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 36 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

4 ms

TCP Connect

1 ms

TLS Handshake

23 ms

Time to First Byte

36 ms

Total Time

36 ms

Connection waterfall

DNS Lookup 4 ms TCP Connect 1 ms TLS Handshake 23 ms Server Processing 8 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.