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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
78
GRADE
C
FIX
2
REVIEW
3
PASS
4
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
4 PASS 3 REVIEW 2 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2001:67c:2294:1000::f199
Info::
IPv6 connection error
Got: dial tcp6 [2001:67c:2294:1000::f199]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2001:67c:2294:1000::f199 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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.

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 5126 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 5126 B Sitemaps referenced 0 User-agents linko, NetSeer crawler, seokicks, Zao, AhrefsBot, HTTrack, QuerySeekerSpider, dotbot, Ezooms, Jyxobot, Moreoverbot, Yasni, Bender, Fetch, spbot, uMBot-LN, UniversalFeedParser, admantx, psbot, SiteSnagger, UnisterBot, WebZIP, wget, wotbox, *, k2spider, Newscan, TurnitinBot, Xenu, AddThis.com, BUbiNG, GPTBot, dloader(NaverRobot), nutch, Flamingo_SearchEngine, Kimengi, omgilibot, ChatGPT-User, trendictionbot, discoverybot, Kimengi/nineconnections.com, netEstate NE Crawler, Teleport, MJ12bot, MSIECrawler, Orthogaffe, trovitBot, AmazonAdBot, crawler4j, SEOkicks-Robot, TeleportPro, CCBot, Maxthon, PiplBot, sogou, Wotbot, BIXOCRAWLER, larbin, Livelapbot, NaverBot, WebCopier, DigExt, ia_archiver, LexxeBot/1.0, magpie-crawler, NerdByNature.Bot, WebStripper, anthropic-ai, OAI-SearchBot, rogerbot, Sosospider, Spinn3r, Google-Extended, DOC, ZyBORG, SiteBot, 008, CyberAlert, bl.uk_lddc_bot, libwww, NextGenSearchBot, proximic, sitecheck.internetseer.com, Slurp, WebReaper, PerplexityBot, CNCDialer, FairShare, Genieo, Moreover, Download Ninja, BLEXBot, Heritrix, WBSearchBot, BDCbot, grub-client, integromedb, SiteBot/0.1, dloader, DTS Agent, CrystalSemanticsBot, MetaURI, Microsoft.URL.Control, nabot, Exabot, Gigabot, heritrix/3.3.0, JikeSpider, Zealbot, Cliqzbot, discobot, IstellaBot, Offline Explorer, Pixray-Seeker, UbiCrawler, NPBot, WeSEE:Search Blocking No — crawling allowed
User-agent: *
Disallow: /s/
Disallow: /registro/*
Disallow: /buscador/*
Disallow: /usuario/panelcontrol/AtencionCliente
Disallow: /ed/*
Disallow: /especiales/philips*
Disallow: /micuenta/
Disallow: /economia/agenda-hoy.html?fecha=*
Disallow: *zonadescargas/obtenerDocumento.html?codigo=*
Disallow: /ultima_hora/index.html?year=*
Disallow: /edicion_impresa/calendario.html?month=*
Disallow: /includes/calendarios/calendarioRadar.html?year*
Disallow: /opinion/documentos/hemeroteca.html?*

# Bot Amazon
User-agent: AmazonAdBot
Allow: /

# Bots poco fiables o que gastan recursos
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: /


# Bots IA
User-agent: GPTBot
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: CCBot
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: anthropic-ai
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: ChatGPT-User
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: OAI-SearchBot
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: Google-Extended
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/

User-agent: PerplexityBot
Disallow: /
Allow: /uestudio/
Allow: /especiales/
Allow: /ofertas-regalos/
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.expansion.com/
200https://expansion.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://expansion.com/ https://expansion.com/

Consistent

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

Certificate validity

178
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
1 A records, 7 ms lookup
PASS
1 A records, 7 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 34.90.247.117
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: 2001:67c:2294:1000::f199
Info::
4 nameserver(s) configured
Got: ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
Info::
2 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: 7 ms
Got: 7 ms
A34.90.247.117
AAAA2001:67c:2294:1000::f199
CNAME
NSns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
MX
10 mxb-005a2501.gslb.pphosted.com
10 mxa-005a2501.gslb.pphosted.com
TXT
SPF v=spf1 mx ip4:212.80.144.25 a:mailing.unidadeditorial.es ip4:193.110.128.182 ip4...
adobe-idp-site-verification=5d984b54fc7397d92bb1b96a40c532b3ad090875dedb22c00a14...
quhhrgxfkGq5UuQDNFbEomojcAbKe4H4qy30BGihDFdlAdihXHd6oeNDL0fJRy+K762S545lUUaDcvUS...
MS=ms71749021
google-site-verification=M_yIeHGrlaEfH4Cm1Q2FasoiG8F0h62todujFXiDp6Q
google-site-verification=TiOzLBwfpeyKQ3YO3o0cYwYuniPOoN4uQcGKSu3X8mc
globalsign-domain-verification=4CxvzUfmeAytL2mI3pOJOnH_0pL_chu3rFYc4u3ABe
google-site-verification=hlS4un3oe6vNZKLn1Gpf1sSMWNr5L5hHCTTQDS1xI_Y
globalsign-domain-verification=7bjinxNsR4XyhujN4NAlLtHAWyALVtjJgzNZciDdZ-
globalsign-domain-verification=KHdzCZD_oMiYp479wH9wCSZsMlbwL6t2W0nwUGP2eU
atlassian-domain-verification=T5fbuvw/H/J2eZWKPjYsqChbdQg/OqHtq4MQ1Ak76LJubHwebj...
CAALookup not available with standard resolver
Resolved in 7 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

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), 610 ms total
PASS
1 redirect(s), 610 ms total
Info::
Single redirect
Got: https://expansion.com → https://www.expansion.com/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 610 ms total
Got: 610 ms

https://expansion.com

447 ms · HTTP/1.1

301

https://www.expansion.com/

164 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://expansion.com301447 msHTTP/1.1Varnish
2https://www.expansion.com/200164 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
expansion.com — via EuroDNS S.A., 31 years, 11 months old, hosted on Google Cloud
PASS
expansion.com — via EuroDNS S.A., 31 years, 11 months old, hosted on Google Cloud
Info::
Domain registered until Oct 17, 2026 (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: EuroDNS S.A.
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: Google Cloud
Got: AS396982
Domain expiry

123 days

October 17, 2026

SSL certificate

178 days

Issued by Sectigo Limited

Domain age

31 years, 11 months

Registered October 18, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Google Cloud

ASN AS396982

34.90.247.117

Registrar

EuroDNS S.A.

Unlocked 4 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
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar EuroDNS S.A.
Created October 18, 1994 (31 years, 11 months ago)
Expires October 17, 2026 (6 months)
Last Updated October 15, 2025
Name Servers ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
DNSSEC Not enabled
Hosting
IP Address 34.90.247.117
ASN AS396982 (GOOGLE-CLOUD-PLATFORM - Google LLC, US)
Provider Google Cloud
Data source: rdap (0.2s)

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

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

Connection waterfall

DNS Lookup 13 ms TCP Connect 146 ms TLS Handshake 150 ms Server Processing 147 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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