Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BRedirect Chain1 redirect(s), 1026 ms totalREVIEW
https://poznan.pl
233 ms · HTTP/1.1
https://www.poznan.pl/
794 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://poznan.pl | 302 | 233 ms | HTTP/1.1 | Varnish |
| 2 | https://www.poznan.pl/ | 200 | 794 ms | HTTP/1.1 | Apache |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BTLS Certificate Expiry & Recommendations37 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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 Records1 A records, 51 ms lookupPASS
| A | 150.254.186.176 |
| AAAA | — |
| CNAME | — |
| NS | dns3.amu.edu.pl, bilbo.nask.org.pl, dns.amu.edu.pl, kirdan.nask.net.pl |
| MX | 1 aspmx.l.google.com |
| TXT | SPF v=spf1 include:_spf.google.com ~all |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Crawlabilityrobots.txt present, sitemap with 546 URLsPASS
User-Agent: *
Disallow: /mim/wspolne
Disallow: /mim/public/socialnet/
Disallow: /mim/socialnet/
Disallow: /mim/print-view/
Disallow: /mim/qrcode/
Disallow: /mim/zipfile/
Disallow: /zipfile/
Disallow: /tilecache/
Disallow: /leading/
Disallow: /mapa_geopoz/
Disallow: /mim/plan/map.html
Disallow: /mim/plan/plan.html
Disallow: /mim/plan/map_service.html
Disallow: /mim/public/szukaj/
Disallow: /print-view/bip/
Disallow: /api-xml/bip/
Disallow: /api-json/bip/
Disallow: /bip/admin/
Disallow: /bip/rejestr-zmian/
Disallow: /socialnet/
Disallow: /plan/
Crawl-delay: 10
User-agent: 008
Disallow: /
User-agent: Amazonbot
Disallow: /
# www.sentibot.eu
User-agent: sentibot
Disallow: /
User-agent: SentiBot
Disallow: /
User-agent: DataForSeoBot
Disallow: /
User-agent: Yandex
Disallow: /
User-agent: AhrefsBot
Disallow: /
User-agent: SemrushBot
Disallow: /
User-agent: SiteAuditBot
Disallow: /
User-agent: SemrushBot-BA
Disallow: /
User-agent: dotbot
Disallow: /
Sitemap: https://www.poznan.pl/sitemap.xml
A+Domain Intelligencepoznan.pl — via home.pl sp. z o.o., 31 years, 9 months old, hosted on POZMAN POZMAN-EDU, PLPASS
932 days
December 31, 2028
37 days
Issued by DigiCert Inc
31 years, 9 months
Registered January 1, 1995
Not enabled
Protects against DNS spoofing
POZMAN POZMAN-EDU, PL
ASN AS9112
150.254.186.176
home.pl sp. z o.o.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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