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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
81
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
4 PASS 4 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
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

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 10240 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 10240 B Sitemaps referenced 0 User-agents *, AdsBot-Google-Mobile, AdsBot-Google Blocking No — crawling allowed
User-agent: AdsBot-Google-Mobile
Disallow: */pd/Ghost-Stories-Original-Tales-Ghostly-Urban-Legends-Audiobook/B07GL5B67Q
#Block /topic/ excess params
Disallow: */topic/*?*

User-agent: AdsBot-Google
Disallow: */pd/Ghost-Stories-Original-Tales-Ghostly-Urban-Legends-Audiobook/B07GL5B67Q
#Block /topic/ excess params
Disallow: */topic/*?*

User-agent: *
Disallow: /3for2
Disallow: /acc-merge
Disallow: /account-details
Disallow: /account-prefs-change
Disallow: /account-settings
Disallow: /account/
Disallow: /ajaxcart
Disallow: /ajaxcartrecommendation
Disallow: /allprodreviews
Disallow: /allproductreview
Disallow: /allproductreviewajax
Disallow: /allset
Disallow: /am-cookie-helper
Disallow: /amazon-chat
Disallow: /amazon100dollarsale
Disallow: /ap/forgotpassword
Disallow: /audible-air-sms
Disallow: /audible-hug-alert
Disallow: /audible-sample-player
Disallow: /audiblehug
Disallow: /betacc
Disallow: /betaem
Disallow: /billing
Disallow: /blog/audible-listening-clubs
Disallow: /blog/cgi-bin
Disallow: /blog/media
Disallow: /cancel-membership
Disallow: /change-email
Disallow: /change-password
Disallow: /change-shipping
Disallow: /chooseccaddress
Disallow: /cloudplayer
Disallow: /contact-preferences
Disallow: /create-account
Disallow: /create-sign-in
Disallow: /credit-alert
Disallow: /dc? 
Disallow: /device-ajax
Disallow: /device-prefs
Disallow: /deviceList
Disallow: /dynamic-offer
Disallow: /easyrenewal
Disallow: /edit-subscriptions
Disallow: /elp
Disallow: /email-help
Disallow: /emailability
Disallow: /error-page
Disallow: /expresscart
Disallow: /expresssale
Disallow: /extracredits
Disallow: /forgot-password
Disallow: /forgot-username
Disallow: /get-author-review
Disallow: /get-giftmodule
Disallow: /gift-redemption
Disallow: /gift-terms
Disallow: /giftemail-recipient
Disallow: /HMDThankYou
Disallow: /int/Free_For_Mem
Disallow: /known-issues
Disallow: /lib
Disallow: /lib-ajax
Disallow: /lib-search-data
Disallow: /library 
Disallow: */listener
Disallow: /membergiving-lp
Disallow: /membership*
Disallow: /morerecenthistory
Disallow: /morerecenthistoryajax
Disallow: /my-reviews
Disallow: /mycart
Disallow: /negRating
Disallow: /nl
Disallow: /offers
Disallow: /oneclick
Disallow: /optout
Disallow: /optoutemail
Disallow: /order-detail
Disallow: /pap$
Disallow: /password-changed-email
Disallow: /patents
Disallow: /payments/
Disallow: /personalrecommend
Disallow: /podcast-experience
Disallow: /posRating
Disallow: /preorders
Disallow: /purchase-history
Disallow: /purchaseconfirm
Disallow: /purchased-gift
Disallow: /r
Disallow: /rd
Disallow: /received-gift
Disallow: /refund-detail
Disallow: /refund-history
Disallow: /relnotes
Disallow: /review-by-author
Disallow: /review-sample
Disallow: /selectpayment
Disallow: /sendemail
Disallow: /sendwelcometest
Disallow: /set-rating
Disallow: /sign-in
Disallow: /sign-in-6for6Sale
Disallow: /signup-intlredirect
Disallow: /sitecounterajax
Disallow: /sp/2for1/ 
Disallow: /sp/3for2/
Disallow: /special-promo/2for1/ 
Disallow: /storyemail
Disallow: /submitstory
Disallow: */subscription/confirmation
Disallow: /subswitch
Disallow: /surprise-sale
Disallow: /surprise-sale-in-library
Disallow: /survey-feedback-email
Disallow: /survey-thank-you-email
Disallow: /sweepstakes
Disallow: /switch-membership
Disallow: /tabdisplay
Disallow: /tfemail
Disallow: /ty$
Disallow: /ty?
Disallow: /typ$
Disallow: /typ?
Disallow: /validate-user
Disallow: /viewrecentepisode
Disallow: /vote-review
Disallow: /welcome-email
Disallow: /wireless-email
Disallow: /wishlistajax
Disallow: /wl
Disallow: /write-review

#----------do not edit below ----------

#Block plink params
Disallow: *?plink=

#Block no result page
Disallow: */no-search-results

#Block search keywords/title pagination excess
Disallow: */search*title=*page=
Disallow: */search*keywords=*page=

#Block non-canonical node + searchAuthor/Narrator pagination
Disallow: */search*node=*searchAuthor=*page=
Disallow: */search*node=*searchNarrator=*page=
Disallow: */search*node=*searchAuthor=*page=
Disallow: */search*node=*searchNarrator=*page=
Disallow: */search*cache*node=*searchAuthor=*page=
Disallow: */search*cache*node=*searchNarrator=*page=

#Block more than one feature_ and/or node filter combination 
Disallow: */search*feature_*feature_
Disallow: */search*searchNarrator=*node=*feature_
Disallow: */search*searchNarrator=*feature_*node=
Disallow: */search*searchAuthor=*node*feature_
Disallow: */search*searchAuthor=*feature_*node=

#Block alternative filter parameters on /search pages
Disallow: */search*field_

#Block alternative sort order for /search
Disallow: */search*sort=pubdate
Disallow: */search*sort=title
Disallow: */search*sort=runtime
Disallow: */search*sort=review-rank

#Block searchAuthor/Narrator + category 
Disallow: */search*searchAuthor=*node=
Disallow: */search*searchNarrator=*node=
Disallow: */search*node=*searchAuthor=
Disallow: */search*node=*searchNarrator=

#Block more than two filters searchAuthor/Narrator/Provider/Keywords
Disallow: */search*searchAuthor=*=*=*=
Disallow: */search*searchNarrator=*=*=*=
Disallow: */search*searchProvider=*=*=*=
Disallow: */search?keywords=*=*=
Disallow: */search?feature_*keywords*node
Disallow: */search?node*keywords*feature_

#Block audible_programs
Disallow: *audible_programs=

#Block Whisper Sync 
Disallow: *feature_three_browse-bin=

#Block /search publication_date
Disallow: */search*publication_date=

#Block Abridgment
Disallow: *feature_nine_browse-bin=

#Block /search Audiobook Format
Disallow: */search*feature_twelve_browse-bin=18685552011

#Block Podcast Other
Disallow: */search?feature_twelve_browse-bin=21201078011*=*=
Disallow: */search?feature_twelve_browse-bin=21201078011*node=$
Disallow: */search*feature*feature_twelve_browse-bin=21201078011
Disallow: */search*feature_twelve_browse-bin=21201078011*feature
Disallow: */search*publication_date*feature_twelve_browse-bin=21201078011
Disallow: */search*feature_twelve_browse-bin=21201078011*publication_date
Disallow: */search*audible_programs*feature_twelve_browse-bin=21201078011
Disallow: */search*feature_twelve_browse-bin=21201078011*audible_programs

#Block Podcast searchAuthor/Narrator/Provider
Disallow: */search?feature_twelve_browse-bin=21201078011*&searchAuthor=
Disallow: */search?feature_twelve_browse-bin=21201078011*&searchNarrator=
Disallow: */search?feature_twelve_browse-bin=21201078011*&searchProvider=

#Block Podcast /search &?
Disallow: */search?&*feature_twelve_browse-bin=21201078011

#Block /search Podcast Cat Pagination
Disallow: */search*feature_twelve_browse-bin=21201078011*&page=

#Block Duration
Disallow: *feature_seven_browse-bin=

#Block search.ref
Disallow: */search.ref

#Block Webplayer
Disallow: */webplayer

#Block Gift share
Disallow: */gift-title/

#Block Duplicate search titles
Disallow: */search?title=
Disallow: */search?*searchTitle=

#Block Failed cat
Disallow: */cat/*failedPage=

#Block language searchAuthor/Narrator/Provider
Disallow: /*feature_six_browse-bin*searchAuthor
Disallow: /*feature_six_browse-bin*searchNarrator
Disallow: /*feature_six_browse-bin*searchProvider
Disallow: /*searchAuthor*feature_six_browse-bin
Disallow: /*searchNarrator*feature_six_browse-bin
Disallow: /*searchProvider*feature_six_browse-bin

#Block language pagination & keywords param
Disallow: /*feature_six_browse-bin*&page=
Disallow: /*feature_six_browse-bin*&keywords=

#Block browseNode pagination
Disallow: /*browseNode=*&page=

#Block browseNode subcat
Disallow: /*browseNode=*&node=

#Block /search node= sort
Disallow: */search*node=*&sort=

#Block /search keywords sort + cats
Disallow: */search*keywords=*&sort=
Disallow: */search?keywords=*&node=

#Block sort pagination
Disallow: /*&sort*&page=
Disallow: /*?sort*&page=
Disallow: /*&page*&=sort
Disallow: /*?page*&=sort

#Block /search ending in &node=
Disallow: */search*node=$

#Block /search ending in &sort=
Disallow: */search*sort=$

#Block /search skip_spell_correction
Disallow: */search*skip_spell_correction=

#Block /search &node= &sort=
Disallow: */search*&node=*&sort=

#Block searchAuthor/Narrator/Provider &sort=
Disallow: */search?searchAuthor=*&sort=
Disallow: */search?searchNarrator=*&sort=
Disallow: */search?searchProvider=*&sort=

#Block /search
Disallow: */search?&*

#Temp block excess advsearchKeywords
Disallow: */search?advsearchKeywords=*node=
Disallow: */search?advsearchKeywords=*feature_
Disallow: */search?advsearchKeywords=*page=
Disallow: */search?advsearchKeywords=*keywords=
Disallow: */search?advsearchKeywords=*sort=

#Block bad /search
Disallow: */search*18573351011
Disallow: */search*18573352011

#Block Podcast Type
Disallow: */search*feature_twenty-two_browse-bin

#Block amazon-reviews
Disallow: */amazon-reviews

#Block /search audibleGroupID
Disallow: */search*audibleGroupID

#Block search.H and similar
Disallow: */search.

#Block old mobile narrator params
Disallow: */search?narrator=

#Block /search with multiple authors
Disallow: */search*%7C
Disallow: */search*|

#Block Sabeeha excess
Disallow: */search?Sabeeha+Rehman

#Block new signin URLs redirects
Disallow: */audible/signinRedirect

#Block staging generated URLs
Disallow: */arya/

#Block /topic/ excess params
Disallow: */topic/*?*

#Block item_name and asin only podcasts
Disallow: */pd/Podcast/
Disallow: */pd/item_name-Podcast/
Disallow: */pd/ITEM_NAME-Podcast/
Disallow: */podcast/ITEM_NAME/

#Block es_US pagination
Disallow: /es_US/*page=

#Block es_US excess browseNode
Disallow: /es_US/search?browseNode=*&*

#Block excess language
Disallow: /search*language=
Disallow: /adblbestsellers*language=
Disallow: /es_US/search*language=
Disallow: /es_US/adblbestsellers*language=

#Block excess /tag generation
Disallow: */tag/*page=

#Block excess /newreleases
Disallow: /newreleases
Allow: /newreleases$
Allow: /newreleases?feature_six_browse-bin=18685580011&feature_twelve_browse-bin=18685552011&node=18571910011&submitted=1$
Allow: /newreleases?feature_six_browse-bin=18685580011&feature_twelve_browse-bin=18685552011&node=18571951011&submitted=1$
Allow: /newreleases?feature_six_browse-bin=18685580011&feature_twelve_browse-bin=18685552011&node=18572029011&submitted=1$
Allow: /newreleases?feature_six_browse-bin=18685580011&feature_twelve_browse-bin=18685552011&nod
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.audible.com/
200https://audible.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

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

Certificate validity

170
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, 122 ms lookup
PASS
2 A records, 122 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 3.33.131.74, 15.197.139.26
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1483.awsdns-57.org, ns-524.awsdns-01.net, ns-345.awsdns-43.com, ns-1799.awsdns-32.co.uk
Info::
1 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: 122 ms
Got: 122 ms
A3.33.131.74, 15.197.139.26
AAAA—
CNAME—
NSns-1483.awsdns-57.org, ns-524.awsdns-01.net, ns-345.awsdns-43.com, ns-1799.awsdns-32.co.uk
MX
10 amazon-smtp.amazon.com
TXT
uber-domain-verification=ee5f8c89-6881-4bc7-8bb2-7e04fa4bdac6
MS=ms25326476
canva-site-verification=F96_uXbawjt8D5Fwblr-HQ
cisco-ci-domain-verification=39e01db6e06c89959af201901337c78e388772ec90527ba6a70...
docker-verification=f1a404ac-ee04-4250-aaa7-6acfced98046
MS=ms34661628
cisco-ci-domain-verification=33113e816d7d30f9d8a56f4e7545cb3f050ce352cebd9f77616...
atlassian-domain-verification=ZT4AapXgobCpXIWoNcd7gtMjZyOUdr4EDFMnFUWrqqqgdaQVbD...
adobe-idp-site-verification=b6bcd3e5aaffc63607c8bf75744d9a0d1febc50dd7f389428e2a...
spf2.0/pra include:amazon.com include:amazonses.com -all
liveramp-site-verification=HYndZzzdKLumpsoYojaO_wc_oLi2iCwLkDjzLSYxdE4
IPROTA_D66969-XXX
TS1760027
google-site-verification=sSOUYmvKVvA27dgcJ3Ct7M3yMSrAnpn20_xyLt3iZ-M
37e56087-71a0-40f9-bcf1-46a3289296d6
SPF v=spf1 include:amazon.com include:amazonses.com -all
facebook-domain-verification=02nrs9osbr9uuw4ctsan2g2x3q1ha4
lucidlink-verification=HEQZRT83FVW7T6HXTZ6XA7G4T4
box-domain-verification=ffea95cd0e0d61c302198367155b07e74fd534fa1d867662dc9bf996...
smartsheet-site-validation=qjsCwP9AiWm2R4enoFXK4oGfrK70GMWB
google-site-verification=ZBCd_7wqeOXyv6F51d5k62OU9_rcwXiax1cZm_nXjGU
CAALookup not available with standard resolver
Resolved in 122 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
Redirect Chain
1 redirect(s), 671 ms total
PASS
1 redirect(s), 671 ms total
Info::
Single redirect
Got: https://audible.com → https://www.audible.com:443/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 671 ms total
Got: 671 ms

https://audible.com

405 ms · HTTP/1.1

301

https://www.audible.com:443/

266 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://audible.com301405 msHTTP/1.1awselb/2.0
2https://www.audible.com:443/200266 msHTTP/1.1Server

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
audible.com — via CSC Corporate Domains, Inc., 29 years, 9 months old, hosted on AWS
PASS
audible.com — via CSC Corporate Domains, Inc., 29 years, 9 months old, hosted on AWS
Info::
Domain registered until Dec 4, 2026 (7 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: CSC Corporate Domains, Inc.
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.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

140 days

December 4, 2026

SSL certificate

170 days

Issued by Amazon

Domain age

29 years, 9 months

Registered December 5, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

15.197.139.26

Registrar

CSC Corporate Domains, Inc.

Unlocked 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
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar CSC Corporate Domains, Inc.
Created December 5, 1996 (29 years, 9 months ago)
Expires December 4, 2026 (7 months)
Last Updated April 2, 2026
Name Servers ns-1483.awsdns-57.org, ns-1799.awsdns-32.co.uk, ns-345.awsdns-43.com, ns-524.awsdns-01.net
DNSSEC Not enabled
Hosting
IP Address 15.197.139.26
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
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

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 451 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
38 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
103 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
207 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
451 ms
Total Time Total request time from DNS lookup through full response.
451 ms

Connection waterfall

DNS Lookup 38 ms TCP Connect 103 ms TLS Handshake 207 ms Server Processing 103 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.

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