adecco.com

Readiness by lane

Green: adecco.com. Thin bar: Job Portals, HR & Recruitment peer median.

Priority fixes for adecco.com

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

1. Priority 1 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   Why it matters: TLS 1.3 removes legacy cipher suites and completes the handshake in fewer round trips, so it is both safer and faster for new connections.

   What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.

   87% of Job Portals, HR & Recruitment peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 7 days, below the one-year benchmark.

   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 Azure Front Door/CDN: Add a response header action in a Front Door rule set.

   36% of Job Portals, HR & Recruitment peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

3. Priority 3 · Harden

   DMARC policy enforces quarantine or reject

   Observed: The DMARC policy for adecco.com was p=none, which asks receivers to take no action on failing mail.

   What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.

   45% of Job Portals, HR & Recruitment peers do this.

   Guide: A Practical Website Health Check for Owners

4. Priority 4 · Accelerate

   Modern image formats in use

   Observed: The homepage had 31 images and none used WebP or AVIF.

   What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

   On Next.js: The next/image component serves optimized formats automatically.

   38% of Job Portals, HR & Recruitment peers do this.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

What adecco.com already does well

Practices fewer than half of Job Portals, HR & Recruitment peers use.

• Nameservers spread across providersNameservers spread across more than one operator.11% of peers
• CAA records limit who can issue certificatesCAA limits issuance to digicert.com, letsencrypt.org, sectigo.com.14% of peers
• Content Security Policy presentContent-Security-Policy present.30% of peers

What we saw

Homepage checked

https://www.adecco.com/

Homepage response

HTTP 200

TLS

TLSv1.2, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2027-01-20

CDN or edge

Azure Front Door/CDN

Platform or framework

Next.js, Sitecore

DNS operators

2 self-run or other nameserver domains

HSTS

max-age 7 days, includeSubDomains

DMARC policy

p=none

Homepage HTML

473 KB, br

Images on homepage

31 (jpg 130, svg 117, png 27)

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 Job Portals, HR & Recruitment sites

• ams.at71
• arbetsformedlingen.se71
• bukajobs.com72
• isinolsun.com72
• pharmabharat.com72

Job Portals, HR & Recruitment readiness benchmark