Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BDNS Records2 A records, 11 ms lookupREVIEW
| A | 199.232.194.133, 199.232.198.133 |
| AAAA | — |
| CNAME | prisa-us-eu.map.fastly.net |
| NS | — |
| MX | — |
| TXT | — |
| CAA | Lookup not available with standard resolver |
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
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.
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'.
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)
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
BCrawlabilityrobots.txt present, no sitemapREVIEW
A sitemap helps search engines discover and index your pages more efficiently.
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.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
User-Agent: *
Disallow: /pruebas/
#Disallow: /.well-known/amphtml/
Disallow: /t/
Disallow: /publicidad/
Disallow: /notificarelacionadas
Disallow: /*.swf$
Disallow: /eskupTSUpdate
Disallow: *?preview=true$
# An~adidos 20250325 por oscarf
Disallow: /Ineskup
Disallow: /Outeskup
Disallow: /OuteskupSimple
Disallow: /OuteskupSimpleMustache
Disallow: /Msgeskup
Disallow: /Profileeskup
Disallow: /Threadeskup
Disallow: /ThreadeskupSimple
# Bots bloqueados
User-agent: 008 Disallow: /
User-agent: AddThis.com Disallow: /
User-agent: admantx Disallow: /
User-agent: AhrefsBot Disallow: /
User-agent: BDCbot Disallow: /
User-agent: Bender Disallow: /
User-agent: BIXOCRAWLER Disallow: /
User-agent: bl.uk_lddc_bot Disallow: /
User-agent: BLEXBot Disallow: /
User-agent: BUbiNG Disallow: /
User-agent: Cliqzbot Disallow: /
User-agent: CNCDialer Disallow: /
User-agent: crawler4j Disallow: /
User-agent: CrystalSemanticsBot Disallow: /
User-Agent: CyberAlert Disallow: /
User-agent: DigExt Disallow: /
User-agent: discobot Disallow: /
User-agent: discoverybot Disallow: /
User-agent: dloader Disallow: /
User-agent: dloader(NaverRobot) Disallow: /
User-agent: DOC Disallow: /
User-agent: dotbot Disallow: /
User-agent: Download Ninja Disallow: /
User-agent: DTS Agent Disallow: /
User-agent: Exabot Disallow: /
User-agent: Ezooms Disallow: /
User-Agent: FairShare Disallow: /
User-agent: Fetch Disallow: /
User-agent: Flamingo_SearchEngine Disallow: /
User-agent: Genieo Disallow: /
User-agent: Gigabot Disallow: /
User-agent: grub-client Disallow: /
User-agent: Heritrix Disallow: /
User-agent: heritrix/3.3.0 Disallow: /
User-agent: HTTrack Disallow: /
User-agent: ia_archiver Disallow: /
User-agent: integromedb Disallow: /
User-agent: IstellaBot Disallow: /
User-agent: JikeSpider Disallow: /
User-agent: Jyxobot Disallow: /
User-agent: k2spider Disallow: /
User-agent: Kimengi Disallow: /
User-agent: Kimengi/nineconnections.com Disallow: /
User-agent: larbin Disallow: /
User-agent: LexxeBot/1.0 Disallow: /
User-agent: libwww Disallow: /
User-agent: linko Disallow: /
User-agent: Livelapbot Disallow: /
User-agent: magpie-crawler Disallow: /
User-agent: Maxthon Disallow: /
User-agent: MetaURI Disallow: /
User-agent: Microsoft.URL.Control Disallow: /
User-agent: MJ12bot Disallow: /
User-agent: Moreover Disallow: /
User-agent: Moreoverbot Disallow: /
User-agent: MSIECrawler Disallow: /
User-agent: nabot Disallow: /
User-agent: NaverBot Disallow: /
User-agent: NerdByNature.Bot Disallow: /
User-agent: netEstate NE Crawler Disallow: /
User-agent: NetSeer crawler Disallow: /
User-agent: Newscan Disallow: /
User-agent: NextGenSearchBot Disallow: /
User-agent: NPBot Disallow: /
User-agent: nutch Disallow: /
User-agent: Offline Explorer Disallow: /
User-agent: omgilibot Disallow: /
User-agent: Orthogaffe Disallow: /
User-agent: PiplBot Disallow: /
User-agent: Pixray-Seeker Disallow: /
User-agent: proximic Disallow: /
User-agent: psbot Disallow: /
User-agent: QuerySeekerSpider Disallow: /
User-agent: rogerbot Disallow: /
User-agent: seokicks Disallow: /
User-agent: SEOkicks-Robot Disallow: /
User-agent: SiteBot Disallow: /
User-agent: SiteBot/0.1 Disallow: /
User-agent: sitecheck.internetseer.com Disallow: /
User-agent: SiteSnagger Disallow: /
User-agent: Slurp Disallow: /
User-agent: sogou Disallow: /
User-agent: Sosospider Disallow: /
User-agent: spbot Disallow: /
User-agent: Spinn3r Disallow: /
User-agent: Teleport Disallow: /
User-agent: TeleportPro Disallow: /
User-Agent: trendictionbot Disallow: /
User-agent: trovitBot Disallow: /
User-agent: TurnitinBot Disallow: /
User-agent: UbiCrawler Disallow: /
User-agent: uMBot-LN Disallow: /
User-agent: UnisterBot Disallow: /
User-agent: UniversalFeedParser Disallow: /
User-agent: WBSearchBot Disallow: /
User-agent: WebCopier Disallow: /
User-agent: WebReaper Disallow: /
User-agent: WebStripper Disallow: /
User-agent: WebZIP Disallow: /
User-agent: WeSEE:Search Disallow: /
User-agent: wget Disallow: /
User-agent: Wotbot Disallow: /
User-agent: wotbox Disallow: /
User-agent: Xenu Disallow: /
User-agent: Yasni Disallow: /
User-agent: Zao Disallow: /
User-agent: Zealbot Disallow: /
User-agent: ZyBORG Disallow: /
User-agent: PetalBot Disallow: /
No sitemap found
Adding a sitemap helps search engines discover your pages.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations89 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
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
ARedirect Chain1 redirect(s), 180 ms totalPASS
https://www.elpais.com
71 ms · HTTP/1.1
https://elpais.com/
110 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://www.elpais.com | 301 | 71 ms | HTTP/1.1 | Apache/2.4.6 (CentOS) |
| 2 | https://elpais.com/ | 200 | 110 ms | HTTP/1.1 | openresty |
See the visual redirect chain in the HTTP Probe tab →
A+Domain Intelligenceelpais.com — via Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA, 25 years, 5 months oldPASS
200 days
March 5, 2027
89 days
Issued by Let's Encrypt
25 years, 5 months
Registered March 5, 2001
Not enabled
Protects against DNS spoofing
Unknown
2a02:26f0:6100::6861:e59
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA
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