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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
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

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 10240 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

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, zoomRank/2.0, OAI-SearchBot, PerplexityBot, *, Mediapartners-Google, Google-Display-Ads-Bot, GPTBot, ChatGPT-User Blocking No — crawling allowed
User-agent: *
Disallow: /account/index.html
Disallow: /ad/
Disallow: /annonces/
Disallow: /back-from-mobile.html
Disallow: /boutiques/
Disallow: /ck/
Disallow: /classified/latest/
Disallow: /dc/accessibilite
Disallow: /dc/decisions_de_justice
Disallow: /m-abmelden.html
Disallow: /m-anzeige-loeschen.html
Disallow: /m-anzeige-loeschen-mail.html
Disallow: /m-anzeige-pausieren.html
Disallow: /m-anzeige-verlaengern-mail.html
Disallow: /m-benutzer-aktivierung.html
Disallow: /m-benutzer-aktivierungsmail.html
Disallow: /m-bestellung-abgeschlossen.html
Disallow: /m-bestellung-aufnehmen.html
Disallow: /m-einspruch-erheben.html
Disallow: /m-einstellungen.html
Disallow: /m-einstellungen-bearbeiten.html
Disallow: /m-merkliste.html
Disallow: /m-merkliste-bearbeiten.html
Disallow: /m-nutzer-entfolgen-ajax.html
Disallow: /m-nutzer-folgen-ajax.html
Disallow: /m-passwort-erneuern.html
Disallow: /m-passwort-vergessen.html
Disallow: /m-pp-rt.html
Disallow: /m-suche-verwenden.html
Disallow: /m-verkaufsschild-erstellen.html
Disallow: /m-meine-nutzer.html
Disallow: /m-meine-suchen.html
Disallow: /m-verifikation.html
Disallow: /checkout.html
Disallow: /loesungscenter.html
Disallow: /wallet.html
Disallow: /maklerempfehlung
Disallow: /m-maklerempfehlung-abmelden.html
Disallow: /m-maklerempfehlung-leaddaten.html
Disallow: /messages/
Disallow: /zur-merkliste.html
Disallow: /p-anzeige-abschicken.html
Disallow: /p-anzeige-aufgeben-bestaetigung.html
Disallow: /p-anzeige-bearbeiten.html
Disallow: /p-anzeige-vorschau.html
Disallow: /p-bild-hochladen.html
Disallow: /p-kategorie-aendern.html
Disallow: /s-feed.rss
Disallow: /s-kategorie-baum.html
Disallow: /s-bestandsliste.html
Disallow: /s-suchanfrage.html
Disallow: /m-einloggen.html
Disallow: /m-einloggen-sso.html
Disallow: /m-login-bestaetigen.html
Disallow: /poc-astro
Disallow: /s-oac
Disallow: /s-poac
Disallow: /search
Disallow: /SEARCH
Disallow: /HOME
Disallow: /BROWSE
Disallow: /VIP
Disallow: /PVIP
Disallow: /MVIP
Disallow: /EVIP
Disallow: /DVIP
Disallow: /facebook/
Disallow: /*/topAds
Disallow: /*/s-anzeige:gesuche
Disallow: /*/anzeige:gesuche
Disallow: /*/s-anzeige:angebote
Disallow: /*/anzeige:angebote
Disallow: /*/s-direktkaufen:aktiv
Disallow: /s-direktkaufen:aktiv
Disallow: /*/direktkaufen:aktiv
Disallow: /s-paketdienst:*
Disallow: /*/paketdienst:*
Disallow: /*+options:*
Disallow: /*/anbieter:*
Disallow: /*/sortierung:*
Disallow: /*sortierung:entfernung*
Disallow: /*/preis:*
Disallow: /*/k0*r30
Disallow: /*/k0*r150
Disallow: /*/l*r30
Disallow: /*/l*r150
Disallow: /*/c*r30
Disallow: /*/c*r150
Disallow: /*/k0*r5
Disallow: /*/k0*r10
Disallow: /*/k0*r20
Disallow: /*/k0*r50
Disallow: /*/k0*r100
Disallow: /*/k0*r200
Disallow: /*/l*r5
Disallow: /*/l*r10
Disallow: /*/l*r20
Disallow: /*/l*r50
Disallow: /*/l*r100
Disallow: /*/l*r200
Disallow: /*/c*r5
Disallow: /*/c*r10
Disallow: /*/c*r20
Disallow: /*/c*r50
Disallow: /*/c*r100
Disallow: /*/c*r200
Disallow: /*.json
Disallow: /*@lt
Disallow: /*simcid=*
Disallow: /api
Disallow: /belen-gateway/*
Disallow: /*autos.anzahl_tueren_s*
Disallow: /*autos.km_i*
Disallow: /*autos.ez_i*
Disallow: /*autos.material_innenausstattung_s*
Disallow: /*autos.power_i*
Disallow: /*autos.schaden_s*
Disallow: /*autos.schadstoffklasse_s*
Disallow: /*autos.tuevy_i*
Disallow: /*autos.umweltplakette_s*
Disallow: /*versand_s*
Disallow: /*versand:*
Disallow: /*condition_s*
Disallow: /*kleidung_herren.groesse_s*
Disallow: /*kleidung_damen.groesse_s*
Disallow: /*schuhe_damen.groesse_s*
Disallow: /*schuhe_herren.groesse_s*
Disallow: /*hunde.geimpft_s*
Disallow: /*hunde.erlaubnis_s*
Disallow: /*katzen.geimpft_s*
Disallow: /*katzen.erlaubnis_s*
Disallow: /*auf_zeit_wg.mietart_s*
Disallow: /*auf_zeit_wg.rauchen_s*
Disallow: /*ferienwohnung_ferienhaus.location_s*
Disallow: /*garage_lagerraum.provision_s*
Disallow: /*gewerbeimmobilien.provision_s*
Disallow: /*grundstuecke_garten.provision_s*
Disallow: /*grundstuecke_garten.type_s*
Disallow: /*grundstuecke_garten.art_s*
Disallow: /*haus_mieten.haustyp_s*
Disallow: /*online_tour_s*
Disallow: /*simcid=*
Disallow: /*wohnung_mieten.swap_s*
Disallow: /*work_experience_s*
Disallow: /*working_hours_s*
Disallow: /*vermisste_tiere.art_s*
Disallow: /*zubehoer.type_s*
Disallow: /*zubehoer.art_s*
Disallow: /gdpr/*
Disallow: /liberty/*
Disallow: /bffstatic/*
Disallow: /*wohnung_kaufen.etage_i*
Disallow: /*wohnung_mieten.etage_i*
Disallow: /*.qm_d*
Disallow: /*.zimmer_d*
Disallow: /*.verfuegbarm_i*
Disallow: /*gewerbeimmobilien.preis_pro_qm_d*
Disallow: /*auf_zeit_wg.anzahl_mitbewohner_i*
Disallow: /*haus_kaufen.grundstuecksflaeche_d*
Disallow: /*motorraeder_roller.km_i*
Disallow: /*motorraeder_roller.ez_i*
Disallow: /*motorraeder_roller.hubraum_i*
Disallow: /*motorraeder_roller.leistung_i*
Disallow: /*motorraeder_roller.tuevy_i*
Disallow: /*wohnwagen_mobile.ez_i*
Disallow: /*.wage_d*
Disallow: /*%%E
Disallow: /*%E8%AF%81
Disallow: /*%E4%B8%9A%E8%AF%81
Disallow: /*%E5%A4%A7
Disallow: /*%E5%81%87
Disallow: /*%E5%9F%9F
Disallow: /*?*utm_source=ekde
Disallow: /*/seite:6*
Disallow: /*/seite:7*
Disallow: /*/seite:8*
Disallow: /*/seite:9*
Disallow: /*/seite:10*
Disallow: /*/seite:11*
Disallow: /*/seite:12*
Disallow: /*/seite:13*
Disallow: /*/seite:14*
Disallow: /*/seite:15*
Disallow: /*/seite:16*
Disallow: /*/seite:17*
Disallow: /*/seite:18*
Disallow: /*/seite:19*
Disallow: /*/seite:20*
Disallow: /*/seite:21*
Disallow: /*/seite:22*
Disallow: /*/seite:23*
Disallow: /*/seite:24*
Disallow: /*/seite:25*
Disallow: /*/seite:26*
Disallow: /*/seite:27*
Disallow: /*/seite:28*
Disallow: /*/seite:29*
Disallow: /*/seite:30*
Disallow: /*/seite:31*
Disallow: /*/seite:32*
Disallow: /*/seite:33*
Disallow: /*/seite:34*
Disallow: /*/seite:35*
Disallow: /*/seite:36*
Disallow: /*/seite:37*
Disallow: /*/seite:38*
Disallow: /*/seite:39*
Disallow: /*/seite:40*
Disallow: /*/seite:41*
Disallow: /*/seite:42*
Disallow: /*/seite:43*
Disallow: /*/seite:44*
Disallow: /*/seite:45*
Disallow: /*/seite:46*
Disallow: /*/seite:47*
Disallow: /*/seite:48*
Disallow: /*/seite:49*
Disallow: /*/seite:50*
Disallow: /*/seite:51*
Disallow: /*/seite:52*
Disallow: /*/seite:53*
Disallow: /*/seite:54*
Disallow: /*/seite:55*
Disallow: /*/seite:56*
Disallow: /*/seite:57*
Disallow: /*/seite:58*
Disallow: /*/seite:59*

User-agent: Adsbot-Google
Disallow:

User-agent: Mediapartners-Google
Disallow:

User-agent: zoomRank/2.0
Disallow: /

User-agent: Google-Display-Ads-Bot
Disallow:

User-agent: OAI-SearchBot
Allow: /

User-agent: GPTBot
Allow: /
Disallow: /m-anzeige-loeschen.html
Disallow: /m-benutzer-aktivierungsmail.html
Disallow: /m-bestellung-aufnehmen.html
Disallow: /m-einspruch-erheben.html
Disallow: /m-einstellungen.html
Disallow: /m-nachrichten.html
Disallow: /m-meine-anzeigen.html
Disallow: /m-einstellungen-bearbeiten.html
Disallow: /m-merkliste.html
Disallow: /m-merkliste-bearbeiten.html
Disallow: /m-nutzer-entfolgen-ajax.html
Disallow: /m-nutzer-folgen-ajax.html
Disallow: /m-passwort-erneuern.html
Disallow: /m-passwort-vergessen.html
Disallow: /m-meine-nutzer.html
Disallow: /m-meine-suchen.html
Disallow: /m-verifikation.html
Disallow: /checkout.html
Disallow: /loesungscenter.html
Disallow: /wallet.html
Disallow: /maklerempfehlung
Disallow: /m-benutzer-anmeldung.html
Disallow: /m-maklerempfehlung-abmelden.html
Disallow: /m-maklerempfehlung-leaddaten.html
Disallow: /p-anzeige-abschicken.html
Disallow: /p-anzeige-aufgeben-bestaetigung.html
Disallow: /p-anzeige-bearbeiten.html
Disallow: /p-anzeige-vorschau.html
Disallow: /p-bild-hochladen.html
Disallow: /p-kategorie-aendern.html
Disallow: /s-kategorie-baum.html
Disallow: /s-bestandsliste.html
Disallow: /s-suchanfrage.html
Disallow: /m-einloggen.html
Disallow: /m-einloggen-sso.html
Disallow: /m-login-bestaetigen.html
Disallow: /gdpr/*
Disallow: /liberty/*
Disallow: /bffstatic/*

User-agent: ChatGPT-User
Allow: /
Disallow: /m-anzeige-loeschen.html
Disallow: /m-benutzer-aktivierungsmail.html
Disallow: /m-bestellung-aufnehmen.html
Disallow: /m-einspruch-erheben.html
Disallow: /m-einstellungen.html
Disallow: /m-nachrichten.html
Disallow: /m-meine-anzeigen.html
Disallow: /m-einstellungen-bearbeiten.html
Disallow: /m-merkliste.html
Disallow: /m-merkliste-bearbeiten.html
Disallow: /m-nutzer-entfolgen-ajax.html
Disallow: /m-nutzer-folgen-ajax.html
Disallow: /m-passwort-erneuern.html
Disallow: /m-passwort-vergessen.html
Disallow: /m-meine-nutzer.html
Disallow: /m-meine-suchen.html
Disallow: /m-verifikation.html
Disallow: /checkout.html
Disallow: /loesungscenter.html
Disallow: /wallet.html
Disallow: /maklerempfehlung
Disallow: /m-benutzer-anmeldung.html
Disallow: /m-maklerempfehlung-abmelden.html
Disallow: /m-maklerempfehlung-leaddaten.html
Disallow: /p-anzeige-abschicken.html
Disallow: /p-anzeige-aufgeben-bestaetigung.html
Disallow: /p-anzeige-bearbeiten.html
Disallow: /p-anzeige-vorschau.html
Disallow: /p-bild-hochladen.html
Disallow: /p-kategorie-aendern.html
Disallow: /s-kategorie-baum.html
Disallow: /s-bestandsliste.html
Disallow: /s-suchanfrage.html
Disallow: /m-einloggen.html
Disallow: /m-einloggen-sso.html
Disallow: /m-login-bestaetigen.html
Disallow: /gdpr/*
Disallow: /liberty/*
Disallow: /bffstatic/*

User-agent: PerplexityBot
Allow: /
Disallow: /m-anzeige-loeschen.html
Disallow: /m-benutzer-aktivierungsmail.html
Disallow: /m-bestellung-aufnehmen.html
Disallow: /m-einspruch-erheben.html
Disallow: /m-einstellungen.html
Disallow: /m-nachrichten.html
Disallow: /m-meine-anzeigen.html
Disallow: /m-einstellungen-bearbeiten.html
Disallow: /m-merkliste.html
Disallow: /m-merkliste-bearbeiten.html
Disallow: /m-nutzer-entfolgen-ajax.html
Disallow: /m-nutzer-folgen-ajax.html
Disallow: /m-passwort-erneuern.html
Disallow: /m-passwort-vergessen.html
Disallow: /m-meine-nutzer.html
Disallow: /m-meine-suchen.html
Disallow: /m-verifikation.html
Disallow: /checkout.html
Disallow: /loesungscenter.html
Disallow: /wallet.html
Disallow: /maklerempfehlung
Disallow: /m-benutzer-anmeldung.html
Disallow: /m-maklerempfehlung-abmelden.html
Disallow: /m-maklerempfehlung-leaddaten.html
Disallow: /p-anzeige-abschicken.html
Disallow: /p-anzeige-aufgeben-bestaetigung.html
Disallow: /p-anzeige-bearbeiten.html
Disallow: /p-anzeige-vorschau.html
Disallow: /p-bild-hochladen.html
Disallow: /p-kategorie-aendern.html
Disallow:
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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.kleinanzeigen.de/
200https://kleinanzeigen.de/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://kleinanzeigen.de/ → https://kleinanzeigen.de:443/

Consistent

B
TLS Certificate Expiry & Recommendations
100 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

100
days left
0d 30d 60d 90d+

Recommended actions

  • 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
3 A records, 39 ms lookup
PASS
3 A records, 39 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 3.77.159.230, 3.127.0.23, 3.78.7.130
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com, ns-cloud-e2.googledomains.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::
SPF record present in TXT
Info::
DNS resolution time: 39 ms
Got: 39 ms
A3.77.159.230, 3.127.0.23, 3.78.7.130
AAAA—
CNAME—
NSns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com, ns-cloud-e2.googledomains.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
SPF v=spf1 include:_u.kleinanzeigen.de._spf.smart.ondmarc.com -all
google-site-verification=6KW4oHW3W290g8tq2Pza7xFZoRXygfrOajA842Pja7k
google-site-verification=D9U8IhmeFUoNDh65GnQWD8gT-jAdmYSonUAlQX1q6d4
miro-verification=242b077db7834c47e70ee382ccddb2e34093aff6
CAALookup not available with standard resolver
Resolved in 39 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), 279 ms total
PASS
1 redirect(s), 279 ms total
Info::
Single redirect
Got: https://kleinanzeigen.de → https://www.kleinanzeigen.de:443/ (301)
Info::
WWW normalization redirect

https://kleinanzeigen.de

105 ms · HTTP/1.1

301

https://www.kleinanzeigen.de:443/

174 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://kleinanzeigen.de301105 msHTTP/1.1awselb/2.0
2https://www.kleinanzeigen.de:443/200174 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
kleinanzeigen.de — hosted on AWS
PASS
kleinanzeigen.de — hosted on AWS
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

Unknown

SSL certificate

100 days

Issued by Amazon

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

3.78.7.130

Registrar

Registrar unknown

Unlocked Name servers unknown
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar
Hosting
IP Address 3.78.7.130
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.6s)

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

Connection waterfall

DNS Lookup 23 ms TCP Connect 32 ms TLS Handshake 33 ms Server Processing 31 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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