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https://interia.pl

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: 62 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 62 B Sitemaps referenced 0 User-agents grapeshot, * Blocking No — crawling allowed
User-agent: *


Allow:/


User-agent: grapeshot

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.interia.pl/
200https://interia.pl/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://interia.pl/ https://www.interia.pl/

Consistent

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

Certificate validity

108
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, 61 ms lookup
PASS
2 A records, 61 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 217.74.75.90, 217.74.72.58
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: dns2.interia.pl, dns3.interia.pl, dns1.interia.pl
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: 61 ms
Got: 61 ms
A217.74.75.90, 217.74.72.58
AAAA
CNAME
NSdns2.interia.pl, dns3.interia.pl, dns1.interia.pl
MX
5 mx.interia.pl
TXT
google-site-verification=WsKzcc2O9Nnk4QGRCL3ZhaN2vJXvMZpolgcI00vkaKc
SPF v=spf1 ip4:217.74.64.0/22 ip4:195.150.20.0/24 -all
CAALookup not available with standard resolver
Resolved in 61 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), 454 ms total
PASS
1 redirect(s), 454 ms total
Info::
Single redirect
Got: https://interia.pl → https://www.interia.pl/ (301)
Info::
WWW normalization redirect

https://interia.pl

202 ms · HTTP/1.1

301

https://www.interia.pl/

252 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://interia.pl301202 msHTTP/1.1nginx
2https://www.interia.pl/200252 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
interia.pl — via home.pl sp. z o.o., 26 years, 11 months old, hosted on INTERIA, PL
PASS
interia.pl — via home.pl sp. z o.o., 26 years, 11 months old, hosted on INTERIA, PL
Info::
Domain registered until Oct 6, 2033 (7 years, 6 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: home.pl sp. z o.o.
Info::
Hosting: INTERIA, PL
Got: AS16138
Domain expiry

2669 days

October 6, 2033

SSL certificate

108 days

Issued by DigiCert Inc

Domain age

26 years, 11 months

Registered October 7, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

INTERIA, PL

ASN AS16138

217.74.75.90

Registrar

home.pl sp. z o.o.

Lock status unknown 3 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
Registrar home.pl sp. z o.o.
Created October 7, 1999 (26 years, 11 months ago)
Expires October 6, 2033 (7 years, 6 months)
Last Updated September 19, 2024
Name Servers dns2.interia.pl, dns1.interia.pl, dns3.interia.pl
DNSSEC Not enabled
Hosting
IP Address 217.74.75.90
ASN AS16138 (INTERIA, PL)
Provider INTERIA, PL
Data source: rdap (0.5s)

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

A+
HTTP Probe Timing
Total 263 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
61 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
50 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
102 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
263 ms
Total Time Total request time from DNS lookup through full response.
264 ms

Connection waterfall

DNS Lookup 61 ms TCP Connect 50 ms TLS Handshake 102 ms Server Processing 50 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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