airblue.com

Readiness by lane

Green: airblue.com. Thin bar: Airlines peer median.

Priority fixes for airblue.com

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Accelerate

   HTTP/2 negotiated

   Observed: The TLS handshake selected http/1.1 instead of HTTP/2.

   Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.

   What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.

   85% of Airlines peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: CDN Guide for Website Owners

2. Priority 2 · Harden

   HSTS kept for at least a year

   Observed: The homepage response did not include a Strict-Transport-Security header.

   What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

   On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.

   60% of Airlines peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

3. Priority 3 · Enable

   XML sitemap discoverable

   Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.

   What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.

   76% of Airlines peers do this.

   Guide: XML Sitemap Guide: Include Only URLs You Stand Behind

4. Priority 4 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.

   What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.

   On Cloudflare: Use Cache Rules to set edge and browser TTLs for static file paths.

   40% of Airlines peers do this.

   Guide: Browser Caching Guide for Website Owners

What airblue.com already does well

Practices fewer than half of Airlines peers use.

• Modern image formats in useWebP or AVIF images detected.31% of peers
• Reachable over IPv6IPv6 address published.35% of peers
• Certificate lifetime of 100 days or lessShort-lived 90-day certificate from Google Trust Services, already inside the 2027 limit.39% of peers

What we saw

Homepage checked

https://www.airblue.com/

Homepage response

HTTP 200

TLS

TLSv1.3, http/1.1

Certificate

Google Trust Services, 90-day validity, expiring 2026-11-30

CDN or edge

Cloudflare

DNS operators

1 self-run or other nameserver domain

DMARC policy

p=quarantine

Homepage HTML

44 KB, br

Images on homepage

18 (webp 12, jpg 5, svg 1)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Compare with other Airlines sites

• aeroflot.ru52
• britishairways.com54
• saudia.com54
• turkmenistanairlinestr.com51
• vietjetair.com51

Airlines readiness benchmark