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 Chain2 redirect(s), 283 ms totalREVIEW
https://swiss.com
104 ms · HTTP/1.0
https://www.swiss.com/
106 ms · HTTP/1.1
https://www.swiss.com/nl/en/homepage
73 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://swiss.com | 301 | 104 ms | HTTP/1.0 | BigIP |
| 2 | https://www.swiss.com/ | 302 | 106 ms | HTTP/1.1 | cloudflare |
| 3 | https://www.swiss.com/nl/en/homepage | 200 | 73 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
Each redirect adds latency. Try to minimize the chain to 1 hop.
Redirect chain — each hop adds latency; combine into one redirect where possible.
Source: Google Search Central / web.dev
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
BCrawlabilityrobots.txt present, sitemap with 0 URLsREVIEW
Search engines may not be able to parse the sitemap. Fix XML validation errors.
An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.
Learn more ▾ ▴
Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.
Source: sitemaps.org / Google Search Central
An empty sitemap provides no value. Add <url> entries for your pages.
An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.
Learn more ▾ ▴
Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.
Source: Google Search Central / sitemaps.org
# robots.txt https://www.swiss.com/
User-agent: *
Allow: /
Disallow: /service/secured/
Disallow: /deeplink
Sitemap: https://www.swiss.com/sitemap/sitemap_lx.xml.gz
Sitemap: https://www.swiss.com/aircore/sitemaps/sitemap-index.xml
BTLS Certificate Expiry & Recommendations230 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
A+DNS Records1 A records, 60 ms lookupPASS
| A | 146.216.3.74 |
| AAAA | — |
| CNAME | — |
| NS | ns1.swiss.com, ns2.swiss.com |
| MX | 10 mxa-005f4701.gslb.pphosted.com 10 mxb-005f4701.gslb.pphosted.com |
| TXT | Swiss International Air Lines Ltd. MS=ms22036800 MS=ms63767859 srCJ4MBw9gDMxmkCEesKKOZRT9AOjO5+0hrINzmlHTZ6CarX9P8AHOAL4JBU/6iCUm0XhAWtJ9vQ6X7w... bd456010d4c949c593fc8d2ff4e27e12 -ufTy8erjEl-0ydL-NsxuyyVsmY _hwm6nuzaryk0jgh9n372i2x93ocw4z3 docusign=242343fb-e93a-4244-8cca-03a92815d53d docusign=83275cf5-4060-47eb-82f6-f149e9583823 paloaltonetworks-site-verification=9e8169c2cdbbff044e03d85112732a615c674ab42c74b... d365mktkey=2hk1kvrk9ywnotubx24denb3l d365mktkey=dxhjw10iotviyxizm55bhjjf d365mktkey=2i066srp88myi3mpdu1mumilk hk56nnl5941fwh3f0phdhqg2np427cm1 d7cp9ws5gq8c0kypy42bwqcxdnyblz0p google-site-verification=nJ7AalaXuwZQeNfgv-sSKaqJ1zujGJtFzzhfmZ1cJZ0 SPF v=spf1 mx ip4:80.77.214.0/26 ip4:80.77.221.241 include:spf-005f4701.pphosted.com... CsohU7sumBiIUGz5WJfAVmqTLZCdKkT5cnFWR7nJX9uJQUy//hlHUU+E7/dTc22YMjeupH8uY7Drpiy2... 797hc5ywgvjdz05bq0g8bmgbt8grrrwp 41stf5rh38h699gy4rwhb0c886c83s9r swisssign-check=EW8dgdUW7syett91SpeoY__sOl8 swisssign-check=JoN4YgjXD-UuaUbqZLxDkljdmH8 swisssign-check=hYACSYJUisltvY7yv2w7Pm7bgaY swisssign-check=RcTyEcVq-xw35jD9LzNHnam0FmM swisssign-check=UCVu2z5Uh2Rmm19egu1gEvPrY6M _wepn7f976bx5jwdd8aayhiwaxgta2gu apple-domain-verification=nIH5NaTHSU6O7GKG miro-verification=79bfaffd957eeb04175988f4b27bed0f30709882 |
| 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+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceswiss.com — via Abion AB, 28 years, 1 months old, hosted on SWISS-AS, CHPASS
51 days
August 6, 2026
230 days
Issued by SwissSign AG
28 years, 1 months
Registered August 7, 1998
Not enabled
Protects against DNS spoofing
SWISS-AS, CH
ASN AS204590
146.216.3.74
Abion AB
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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
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.
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