AboutUsThe independent trust record for every website

Website report snapshot

sdx-development.com

SDX Development is a web and software development studio based in Montlhéry, Essonne, offering custom website creation, SaaS and MVP development, and business software for companies in Île-de-France and across France. Founded in 2013 by Sébastien Descloux, the firm provides a single technical point of contact from project scoping through deployment and evolution, with emphasis on solutions tied to concrete business objectives.

Can I trust this site?

Sourced website trust answer

Website report: review outstanding findings

This report has outstanding findings. Review their evidence and scope; a technical issue or review hold does not by itself establish fraud.

Facts, not verdicts. AboutUs shows sourced signals and the next owner action; it is not a scam label.

Caution — review the findings below

1 live trust check needs a look before relying on this site.

Source freshness: 44 days old

Authority

Not scored yet

Not enough independent signals yet

Safety

Not enough signals yet

Not enough independent signals yet

3 of 4 safety checks passed (Oct 21, 2026).

Blacklist / threat feeds
Threat-feed coverage is not attached for this domain yet.

Visit website

Evidence and details

The Authority/Safety methodology, live trust checks, and infrastructure context behind the answer above.

Trust checks

Current public signals checked for this report.

DNSgood

1 record

The domain resolves through public DNS.

Source: AboutUs public DNS lookup

HTTPSgood

Reachable

The website responded over HTTPS. Checked HTTPS host: sdx-development.com.

Source: AboutUs live HTTPS response

HTTPS destinationunknown

sdx-development.com

HTTPS request for sdx-development.com ended at sdx-development.com. This host is within the profile domain. This records the response destination, not an HTML canonical declaration or a configuration diagnosis.

Source: AboutUs live HTTPS response

Page metadatagood

Développement web & logiciels sur mesure en Essonne | SDX

Création et refonte de sites en Essonne et Île-de-France. Développement de SaaS, MVP et logiciels métier partout en France, avec un interlocuteur technique direct.

Source: AboutUs live HTTPS response

Security headersmissing

0/3 present

Checks for HSTS, Content-Security-Policy, and X-Frame-Options headers.

Source: AboutUs live HTTPS response

Breach historygood

No breaches on record

Have I Been Pwned has no catalogued breaches for this domain. Absence of a record is not a guarantee that no breach occurred.

Source: Have I Been Pwned

How this report is built— Authority/Safety methodology, Open PageRank attribution, confidence

Authority and safety snapshot

Authority and safety signals are useful with limits

This report is useful as a current website snapshot, but the signal model shows where confidence is limited before visitors, owners, or paid tools rely on it.

Authority —Not enough signals yetCoverage shown; confidence not calibrated

Authority basis: Developing profile signal; AI-enriched current website profile; crawler quality is 80/100. No authority score is published yet from report-derived and stored evidence inputs. External evidence used: RDAP age. Missing external inputs: Tranco rank, Threat feed.
Safety band: Not enough signals yet; 1 live trust signal need review. Model band: Not enough signals yet. New or unclaimed status is not treated as unsafe by itself.

For the site owner— report score, findings, roadmap, print & download

Report score

74/100

Owner action needed

Launch state

Search eligible

Eligible for launch indexing

Owner status

Verified

A domain owner verification has been completed for this profile. AboutUs treats owner-provided facts as higher-trust inputs while still keeping crawler evidence visible.

Search visibility

Indexable public profile

This crawler-backed profile passed the public publication gate.

Report summary

Urgent owner action

Resolve high-priority trust, verification, or visibility issues before treating this profile as launch-ready.

1 high0 medium0 low

Report findings

What should improve before this profile becomes a stronger launch or owner asset.

highShared fixSecurity headers
Checks for HSTS, Content-Security-Policy, and X-Frame-Options headers.
Fix owner-side trust issue
The owner or site operator likely needs to fix the live website signal; AboutUs can recheck and record recovery.
What the correction form will prefill
Finding: Security headers
Official and evidence URL start as https://sdx-development.com; owners can replace the evidence URL with a deeper source page.
The review note includes this finding plus the ranked report context.
Unlocks: Removes a high-priority report blocker and makes claim follow-up or checkout safer.
Suggest a correction

Owner roadmap

The recommended path from public report to verified owner value.

1Domain control is verifiedReadyDNS proof establishes control of the domain. It does not certify every statement or the business itself.Submit factual corrections for review and keep the public record accurate.Suggest corrected facts
2Review: Security headersNextChecks for HSTS, Content-Security-Policy, and X-Frame-Options headers.Check the evidence and submit a correction when the report is inaccurate.Suggest corrected facts
3

Trust checks

Current public signals checked for this report.

DNSgood

1 record

The domain resolves through public DNS.

Source: AboutUs public DNS lookup

HTTPSgood

Reachable

The website responded over HTTPS. Checked HTTPS host: sdx-development.com.

Source: AboutUs live HTTPS response

HTTPS destinationunknown

sdx-development.com

Source: AboutUs live HTTPS response

Page metadatagood

Développement web & logiciels sur mesure en Essonne | SDX

Création et refonte de sites en Essonne et Île-de-France. Développement de SaaS, MVP et logiciels métier partout en France, avec un interlocuteur technique direct.

Source: AboutUs live HTTPS response

Security headersmissing

0/3 present

Checks for HSTS, Content-Security-Policy, and X-Frame-Options headers.

Source: AboutUs live HTTPS response

Breach historygood

No breaches on record

Have I Been Pwned has no catalogued breaches for this domain. Absence of a record is not a guarantee that no breach occurred.

Source: Have I Been Pwned

sdx-development.com

Website report: review outstanding findings

Evidence and details

Trust checks

Authority and safety signals are useful with limits

Urgent owner action

Report findings

Owner roadmap

Website report: review outstanding findings

Trust checks

Authority and safety signals are useful with limits

Urgent owner action

Report findings

Owner roadmap

Keep owner facts current

Optional website monitoring