https://pl.wikipedia.org
Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.SCORE
89
GRADE
B
FIX
1
REVIEW
3
PASS
4
INFO
1
Probed from Amsterdam, Netherlands
301 Moved Permanently
Checks
94 PASS 3 REVIEW 1 FIX
DCDN & DeliveryActionNo CDN detectedFIX
CDN & Delivery
ActionNo CDN detected
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.
BDNS Records1 A records, 22 ms lookupREVIEW
DNS Records
1 A records, 22 ms lookup
1 A records, 22 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 185.15.59.224
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2a02:ec80:300:ed1a::1
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: dyna.wikimedia.org
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 22 ms
Got: 22 ms
| A | 185.15.59.224 |
| AAAA | 2a02:ec80:300:ed1a::1 |
| CNAME | dyna.wikimedia.org |
| NS | — |
| MX | — |
| TXT | — |
| CAA | Lookup not available with standard resolver |
Resolved in 22 ms
Multiple A records provide failover if one server goes down.
Why this matters
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
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Why this matters
CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.
Learn more ▾ ▴
RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.
Source: RFC 1034
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.
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Why this matters
Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.
Learn more ▾ ▴
SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.
Source: RFC 7208 (SPF)
BCrawlabilityrobots.txt present, no sitemapREVIEW
Crawlability
robots.txt present, no sitemap
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 UbiCrawler, Fetch, ZyBORG, grub-client, NPBot, *, IsraBot, Microsoft.URL.Control, fast, SemrushBot, Zao, Zealbot, SiteSnagger, Offline Explorer, HTTrack, Orthogaffe, DOC, Teleport, WebZIP, Xenu, larbin, MJ12bot, WebCopier, TeleportPro, Download Ninja, sitecheck.internetseer.com, WebStripper, libwww, k2spider, linko, wget, Mediapartners-Google*, MSIECrawler, WebReaper Blocking No — crawling allowed
# robots.txt for http://www.wikipedia.org/ and friends
#
# Please note: There are a lot of pages on this site, and there are
# some misbehaved spiders out there that go _way_ too fast. If you're
# irresponsible, your access to the site may be blocked.
#
# Observed spamming large amounts of https://en.wikipedia.org/?curid=NNNNNN
# and ignoring 429 ratelimit responses, claims to respect robots:
# http://mj12bot.com/
User-agent: MJ12bot
Disallow: /
# advertising-related bots:
User-agent: Mediapartners-Google*
Disallow: /
# Wikipedia work bots:
User-agent: IsraBot
Disallow:
User-agent: Orthogaffe
Disallow:
# Crawlers that are kind enough to obey, but which we'd rather not have
# unless they're feeding search engines.
User-agent: UbiCrawler
Disallow: /
User-agent: DOC
Disallow: /
User-agent: Zao
Disallow: /
# Some bots are known to be trouble, particularly those designed to copy
# entire sites. Please obey robots.txt.
User-agent: sitecheck.internetseer.com
Disallow: /
User-agent: Zealbot
Disallow: /
User-agent: MSIECrawler
Disallow: /
User-agent: SiteSnagger
Disallow: /
User-agent: WebStripper
Disallow: /
User-agent: WebCopier
Disallow: /
User-agent: Fetch
Disallow: /
User-agent: Offline Explorer
Disallow: /
User-agent: Teleport
Disallow: /
User-agent: TeleportPro
Disallow: /
User-agent: WebZIP
Disallow: /
User-agent: linko
Disallow: /
User-agent: HTTrack
Disallow: /
User-agent: Microsoft.URL.Control
Disallow: /
User-agent: Xenu
Disallow: /
User-agent: larbin
Disallow: /
User-agent: libwww
Disallow: /
User-agent: ZyBORG
Disallow: /
User-agent: Download Ninja
Disallow: /
# Misbehaving, requests much too fast
User-agent: fast
Disallow: /
# Sorry, wget in its recursive mode is a frequent problem.
# Please read the man page and use it properly; there is a
# --wait option you can use to set the delay between hits,
# for instance.
User-agent: wget
Disallow: /
# The 'grub' distributed client has been *very* poorly behaved.
User-agent: grub-client
Disallow: /
# Doesn't follow robots.txt anyway, but...
User-agent: k2spider
Disallow: /
# Hits many times per second, not acceptable
# http://www.nameprotect.com/botinfo.html
User-agent: NPBot
Disallow: /
# A capture bot, downloads gazillions of pages with no public benefit
# http://www.webreaper.net/
User-agent: WebReaper
Disallow: /
# Per their statement, semrushbot respects crawl-delay directives
# We want them to overall stay within reasonable request rates to
# the backend (20 rps); keeping in mind that the crawl-delay will
# be applied by site and not globally by the bot, 5 seconds seem
# like a reasonable approximation
User-agent: SemrushBot
Crawl-delay: 5
#
# Friendly, low-speed bots are welcome viewing article pages, but not
# dynamically-generated pages please.
#
# Inktomi's "Slurp" can read a minimum delay between hits; if your
# bot supports such a thing using the 'Crawl-delay' or another
# instruction, please let us know.
#
# There is a special exception for API mobileview to allow dynamic
# mobile web & app views to load section content.
# These views aren't HTTP-cached but use parser cache aggressively
# and don't expose Special-pages and other uncached content.
#
# Another exception is for REST API documentation, located at
# /api/rest_v1/?doc.
#
User-agent: *
Allow: /w/api.php?action=mobileview&
Allow: /w/load.php?
Allow: /api/rest_v1/?doc
Allow: /w/rest.php/site/v1/sitemap
Disallow: /w/
Disallow: /api/
Disallow: /trap/
Disallow: /wiki/Special:
Disallow: /wiki/Spezial:
Disallow: /wiki/Spesial:
Disallow: /wiki/Special%3A
Disallow: /wiki/Spezial%3A
Disallow: /wiki/Spesial%3A
#
# ar:
Disallow: /wiki/%D8%AE%D8%A7%D8%B5:Search
Disallow: /wiki/%D8%AE%D8%A7%D8%B5%3ASearch
#
# dewiki:
# T6937
# sensible deletion and meta user discussion pages:
Disallow: /wiki/Wikipedia:L%C3%B6schkandidaten/
Disallow: /wiki/Wikipedia:Löschkandidaten/
Disallow: /wiki/Wikipedia:Vandalensperrung/
Disallow: /wiki/Wikipedia:Benutzersperrung/
Disallow: /wiki/Wikipedia:Vermittlungsausschuss/
Disallow: /wiki/Wikipedia:Administratoren/Probleme/
Disallow: /wiki/Wikipedia:Adminkandidaturen/
Disallow: /wiki/Wikipedia:Qualitätssicherung/
Disallow: /wiki/Wikipedia:Qualit%C3%A4tssicherung/
# 4937#5
Disallow: /wiki/Wikipedia:Vandalismusmeldung/
Disallow: /wiki/Wikipedia:Gesperrte_Lemmata/
Disallow: /wiki/Wikipedia:Löschprüfung/
Disallow: /wiki/Wikipedia:L%C3%B6schprüfung/
Disallow: /wiki/Wikipedia:Administratoren/Notizen/
Disallow: /wiki/Wikipedia:Schiedsgericht/Anfragen/
Disallow: /wiki/Wikipedia:L%C3%B6schpr%C3%BCfung/
# T14111
Disallow: /wiki/Wikipedia:Checkuser/
Disallow: /wiki/Wikipedia_Diskussion:Checkuser/
Disallow: /wiki/Wikipedia_Diskussion:Adminkandidaturen/
# T15961
Disallow: /wiki/Wikipedia:Spam-Blacklist-Log
Disallow: /wiki/Wikipedia%3ASpam-Blacklist-Log
Disallow: /wiki/Wikipedia_Diskussion:Spam-Blacklist-Log
Disallow: /wiki/Wikipedia_Diskussion%3ASpam-Blacklist-Log
#
# enwiki:
# Folks get annoyed when VfD discussions end up the number 1 google hit for
# their name. See T6776
Disallow: /wiki/Wikipedia:Articles_for_deletion/
Disallow: /wiki/Wikipedia%3AArticles_for_deletion/
Disallow: /wiki/Wikipedia:Votes_for_deletion/
Disallow: /wiki/Wikipedia%3AVotes_for_deletion/
Disallow: /wiki/Wikipedia:Pages_for_deletion/
Disallow: /wiki/Wikipedia%3APages_for_deletion/
Disallow: /wiki/Wikipedia:Miscellany_for_deletion/
Disallow: /wiki/Wikipedia%3AMiscellany_for_deletion/
Disallow: /wiki/Wikipedia:Miscellaneous_deletion/
Disallow: /wiki/Wikipedia%3AMiscellaneous_deletion/
Disallow: /wiki/Wikipedia:Copyright_problems
Disallow: /wiki/Wikipedia%3ACopyright_problems
Disallow: /wiki/Wikipedia:Protected_titles/
Disallow: /wiki/Wikipedia%3AProtected_titles/
# T15398
Disallow: /wiki/Wikipedia:WikiProject_Spam/
Disallow: /wiki/Wikipedia%3AWikiProject_Spam/
# T16075
Disallow: /wiki/MediaWiki:Spam-blacklist
Disallow: /wiki/MediaWiki%3ASpam-blacklist
Disallow: /wiki/MediaWiki_talk:Spam-blacklist
Disallow: /wiki/MediaWiki_talk%3ASpam-blacklist
# T13261
Disallow: /wiki/Wikipedia:Requests_for_arbitration/
Disallow: /wiki/Wikipedia%3ARequests_for_arbitration/
Disallow: /wiki/Wikipedia:Requests_for_comment/
Disallow: /wiki/Wikipedia%3ARequests_for_comment/
Disallow: /wiki/Wikipedia:Requests_for_adminship/
Disallow: /wiki/Wikipedia%3ARequests_for_adminship/
# T12288
Disallow: /wiki/Wikipedia_talk:Articles_for_deletion/
Disallow: /wiki/Wikipedia_talk%3AArticles_for_deletion/
Disallow: /wiki/Wikipedia_talk:Votes_for_deletion/
Disallow: /wiki/Wikipedia_talk%3AVotes_for_deletion/
Disallow: /wiki/Wikipedia_talk:Pages_for_deletion/
Disallow: /wiki/Wikipedia_talk%3APages_for_deletion/
Disallow: /wiki/Wikipedia_talk:Miscellany_for_deletion/
Disallow: /wiki/Wikipedia_talk%3AMiscellany_for_deletion/
Disallow: /wiki/Wikipedia_talk:Miscellaneous_deletion/
Disallow: /wiki/Wikipedia_talk%3AMiscellaneous_deletion/
# T16793
Disallow: /wiki/Wikipedia:Changing_username
Disallow: /wiki/Wikipedia%3AChanging_username
Disallow: /wiki/Wikipedia:Changing_username/
Disallow: /wiki/Wikipedia%3AChanging_username/
Disallow: /wiki/Wikipedia_talk:Changing_username
Disallow: /wiki/Wikipedia_talk%3AChanging_username
Disallow: /wiki/Wikipedia_talk:Changing_username/
Disallow: /wiki/Wikipedia_talk%3AChanging_username/
#
# eswiki:
# T8746
Disallow: /wiki/Wikipedia:Consultas_de_borrado/
Disallow: /wiki/Wikipedia%3AConsultas_de_borrado/
#
# fiwiki:
# T10695
Disallow: /wiki/Wikipedia:Poistettavat_sivut
Disallow: /wiki/K%C3%A4ytt%C3%A4j%C3%A4:
Disallow: /wiki/Käyttäjä:
Disallow: /wiki/Keskustelu_k%C3%A4ytt%C3%A4j%C3%A4st%C3%A4:
Disallow: /wiki/Keskustelu_käyttäjästä:
Disallow: /wiki/Wikipedia:Yll%C3%A4pit%C3%A4j%C3%A4t/
Disallow: /wiki/Wikipedia:Ylläpitäjät/
#
# hewiki:
Disallow: /wiki/%D7%9E%D7%99%D7%95%D7%97%D7%93:Search
Disallow: /wiki/%D7%9E%D7%99%D7%95%D7%97%D7%93%3ASearch
#T11517
Disallow: /wiki/ויקיפדיה:רשימת_מועמדים_למחיקה/
Disallow: /wiki/ויקיפדיה%3Aרשימת_מועמדים_למחיקה/
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94:%D7%A8%D7%A9%D7%99%D7%9E%D7%AA_%D7%9E%D7%95%D7%A2%D7%9E%D7%93%D7%99%D7%9D_%D7%9C%D7%9E%D7%97%D7%99%D7%A7%D7%94/
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94%3A%D7%A8%D7%A9%D7%99%D7%9E%D7%AA_%D7%9E%D7%95%D7%A2%D7%9E%D7%93%D7%99%D7%9D_%D7%9C%D7%9E%D7%97%D7%99%D7%A7%D7%94/
Disallow: /wiki/ויקיפדיה:ערכים_לא_קיימים_ומוגנים
Disallow: /wiki/ויקיפדיה%3Aערכים_לא_קיימים_ומוגנים
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94:%D7%A2%D7%A8%D7%9B%D7%99%D7%9D_%D7%9C%D7%90_%D7%A7%D7%99%D7%99%D7%9E%D7%99%D7%9D_%D7%95%D7%9E%D7%95%D7%92%D7%A0%D7%99%D7%9D
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94%3A%D7%A2%D7%A8%D7%9B%D7%99%D7%9D_%D7%9C%D7%90_%D7%A7%D7%99%D7%99%D7%9E%D7%99%D7%9D_%D7%95%D7%9E%D7%95%D7%92%D7%A0%D7%99%D7%9D
Disallow: /wiki/ויקיפדיה:דפים_לא_קיימים_ומוגנים
Disallow: /wiki/ויקיפדיה%3Aדפים_לא_קיימים_ומוגנים
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94:%D7%93%D7%A4%D7%99%D7%9D_%D7%9C%D7%90_%D7%A7%D7%99%D7%99%D7%9E%D7%99%D7%9D_%D7%95%D7%9E%D7%95%D7%92%D7%A0%D7%99%D7%9D
Disallow: /wiki/%D7%95%D7%99%D7%A7%D7%99%D7%A4%D7%93%D7%99%D7%94%3A%D7%93%D7%A4%D7%99%D7%9D_%D7%9C%D7%90_%D7%A7%D7%99%D7%99%D7%9E%D7%99%D7%9D_%D7%95%D7%9E%D7%95%D7%92%D7%A0%D7%99%D7%9D
#
# huwiki:
Disallow: /wiki/Speci%C3%A1lis:Search
Disallow: /wiki/Speci%C3%A1lis%3ASearch
#
# itwiki:
# T7545
Disallow: /wiki/Wikipedia:Pagine_da_cancellare
Disallow: /wiki/Wikipedia%3APagine_da_cancellare
Disallow: /wiki/Wikipedia:Utenti_problematici
Disallow: /wiki/Wikipedia%3AUtenti_problematici
Disallow: /wiki/Wikipedia:Vandalismi_in_corso
Disallow: /wiki/Wikipedia%3AVandalismi_in_corso
Disallow: /wiki/Wikipedia:Amministratori
Disallow: /wiki/Wikipedia%3AAmministratori
Disallow: /wiki/Wikipedia:Proposte_di_cancellazione_semplificata
Disallow: /wiki/Wikipedia%3AProposte_di_cancellazione_semplificata
Disallow: /wiki/Categoria:Da_cancellare_subito
Disallow: /wiki/Categoria%3ADa_cancellare_subito
Disallow: /wiki/Wikipedia:Sospette_violazioni_di_copyright
Disallow: /wiki/Wikipedia%3ASospette_violazioni_di_copyright
Disallow: /wiki/C
sitemap.xml No sitemap found
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations75 days until leaf cert expires — 3 issues to addressREVIEW
TLS Certificate Expiry & Recommendations
75 days until leaf cert expires — 3 issues to address
Certificate validity
75
days left
0d 30d 60d 90d+
Recommended actions
- Submit your domain to hstspreload.org to be added to the Chrome preload list
- 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
ARedirect Chain1 redirect(s), 16 ms totalPASS
Redirect Chain
1 redirect(s), 16 ms total
1 redirect(s), 16 ms total
Info::
Single redirect
Got: https://pl.wikipedia.org → https://pl.wikipedia.org/wiki/Wikipedia:Strona_g%C5%82%C3%B3wna (301)
https://pl.wikipedia.org
14 ms · HTTP/1.1
301
https://pl.wikipedia.org/wiki/Wikipedia:...
2 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://pl.wikipedia.org | 301 | 14 ms | HTTP/1.1 | mw-web.eqiad.main-699f78dc5d-cvc4q |
| 2 | https://pl.wikipedia.org/wiki/Wikipedia:... | 200 | 2 ms | HTTP/1.1 | mw-web.eqiad.main-787b7cf885-kj598 |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
IPv6 Readiness
IPv6 reachable (1 ms)
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a02:ec80:300:ed1a::1
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a02:ec80:300:ed1a::1 Connection Reachable (1 ms)
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS
www / non-www
https://www.pl.wikipedia.org/
200https://pl.wikipedia.org/
HTTP → HTTPS
301http://pl.wikipedia.org/ → https://pl.wikipedia.org/
Consistent
A+HTTP Probe TimingTotal 9 ms — DNS, TCP, TLS, TTFB, content transfer breakdownPASS
HTTP Probe Timing
Total 9 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
2 msTCP Connect TCP Connect — time to establish a TCP connection to the server.
1 msTLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
5 msTime to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
10 msTotal Time Total request time from DNS lookup through full response.
10 msConnection waterfall
DNS Lookup 2 ms TCP Connect 1 ms TLS Handshake 5 ms Server Processing 2 ms Content Transfer 0 ms
Domain IntelligenceDomain intelligence data not availableINFO
Domain Intelligence
Domain intelligence data not available
Domain intelligence data not available
RDAP and WHOIS lookup both failed
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.