securityheaders.com is a header snapshot
Free, one request to one address, grade from F to A+, with a short explanation per header. Its paid API was reported to be discontinued in April 2026; the free site remains.
VibeShip vs securityheaders.com
A one-page header grade meets the whole running product.
securityheaders.com, created by Scott Helme and now run by Snyk through its Probely acquisition, shows in seconds which security headers one page sends and gives it a grade. VibeShip checks those headers too, then the parts of the product a header can't protect.
Fact-checked against securityheaders.com's own pages · 25 October 2026
The short answer
Verdict
Use securityheaders.com for the quickest possible header check, especially while you are editing your server or framework config. Use VibeShip when you want to know what stands between the live product and production, including the leaks headers can't prevent. securityheaders.com is faster and more focused for headers alone.
VibeShip is a roadmap to production
Sixteen outside checks, an extensive scan with an account, and with a subscription tests behind the login and in the code, sorted into what blocks production, what to do next and what is in place.
Who covers what
Not a feature-for-feature race: the two tools start from different places and are built for different readers.
| Concern | VibeShip | securityheaders.com |
|---|---|---|
| Primary outcome | A roadmap to production across security, speed, search, email and legal pages | A grade for the security headers one page sends |
| Security headers | Whether each of six is present | Present, missing and warnings per header, instantly |
| Keys in the browser, open Supabase or Firebase data | Checked | Not in scope |
| Private files, admin pages, PHP2Shell | Checked | Not in scope |
| Email forgery, legal pages, speed, search | Checked | Not in scope |
| Behind the login and in the code | With a subscription | Not in scope |
| Time to result | About a minute for the quick check | Seconds |
| Published entry pricing | Free quick check, no signup; free extensive scan with an account; €9.99 a month per site (three-month minimum) for every finding explained, tests behind the login and in the code, with a full refund within 7 days if it isn't useful; or €19.99 once for one report | Free |
Where securityheaders.com is better
Said plainly, because a comparison that only praises one side is an advert.
- Speed: a result in seconds, for any single address
- Raw header values shown in full, which is what you want while editing config
- Free with no limits you will notice for occasional checks
Which is the better fit?
You want the full picture of the live product and a fix order a non-developer can follow.
You are changing your headers right now and want instant feedback on one page.
Use them together
securityheaders.com owns the quick header check
Keep it open while you edit your config.
VibeShip owns the rest of the running product
Run it before launch and after big changes to see what still blocks production.
Sources
Claims about securityheaders.com were checked on 25 October 2026. Vendor products and prices change; follow the links for current details.
Fair-comparison note: VibeShip is not a substitute for securityheaders.com's instant, per-address header view. securityheaders.com does not look at database rules, keys, private files, email or legal pages. Neither replaces a professional security firm.
Common questions
Is an A on securityheaders.com enough?
It means the page sends good headers. Headers don't stop a secret key in your scripts or a database anyone can read, which are the common leaks on young products.
Who runs securityheaders.com now?
It was created by Scott Helme, acquired by Probely, and Probely was acquired by Snyk in November 2024.
See what a stranger sees on your site
Run the free quick check against the site your customers use: sixteen checks from outside, sorted into what blocks production and what to do next. Our scans are best effort: they can miss a weakness or flag one that isn't there. This is advice, not a guarantee, and it doesn't replace a security firm. Your site's safety stays your responsibility.