acierto.com describes itself as "El comparador que te ayuda a ahorrar en tus seguros, préstamos, hipotecas y mucho más. ¡Compara y acierta!". It was registered in 2002, served from Madrid, Spain. It has a valid HTTPS certificate, 1 of 6 common security headers, 2 tracking scripts.
What is acierto.com about?
The words appearing most often on the homepage, excluding common filler, are
a rough indication of subject matter rather than a description of the business:
- function ×228
- options ×196
- datepicker ×142
- seguros ×92
- return ×90
- null ×89
- input ×70
- prototype ×56
- slick ×54
- case ×52
Does acierto.com publish the usual trust pages?
None of about, contact, privacy or terms could be found at their usual addresses.
That is common for small or single-purpose sites, and it is also what a disposable
site looks like, so it is worth noting rather than concluding from.
These were checked at conventional paths only, so a site using different URLs may
publish them elsewhere.
How does acierto.com compare with other domains analysed here?
Measured against the 13 domains in this index. This is a
small, self-selected sample — the domains people happened to look up — not a
representative sample of the web.
| Response time | Faster than 46% of them (median 715ms) |
|---|---|
| Security headers | More than 70% of them |
| Domain age | Older than 69% of them |
Related domains in this index
Analysed domains built on a similar stack:
When was acierto.com registered?
acierto.com was registered on 19 April 2002, which makes it about 24 years old.
A registration this old means the domain has been renewed repeatedly, which costs money every year and is not something abandoned or disposable projects tend to do.
The registrar of record is Key-Systems GmbH.
Registration runs until 19 April 2027.
The domain carries 2 registry locks, which blocks unauthorised transfer or deletion.
| Registered | 19 April 2002 |
|---|---|
| Expires | 19 April 2027 |
| Registrar | Key-Systems GmbH |
| Registry status | client delete prohibited, client transfer prohibited |
Where is acierto.com hosted?
The first address resolves to infrastructure in Madrid, Spain.
The network is operated by arsys.es (AS8560 IONOS SE).
Hosting location describes where the responding server sits, not where the business is. A CDN will report its nearest edge rather than the origin.
What is acierto.com running on?
acierto.com exposes 3 identifiable technologies: Google Analytics, Google Tag Manager, Cloudflare.
Cloudflare sits in front of the origin, so the server header, IP addresses and response timing describe the edge rather than the machine actually running the site.
Visitor tracking is present (Google Analytics and Google Tag Manager), so this homepage is not cookie-free.
- Google Analytics
- Google Tag Manager
- Cloudflare
How does the homepage respond?
The server answered with HTTP 200 over
HTTPS.
At 715ms to first byte this response is slow for a homepage measured from a single European location.
The HTML alone is 605KB before images, stylesheets or scripts are counted, which is heavy for a document that browsers must parse before anything renders.
The HTML is compressed with gzip.
| Server header | cloudflare |
|---|---|
| Compression | gzip |
| Page size | 619,828 bytes |
| Declared language | es |
| Mobile viewport | declared |
What does the homepage say about itself?
The title is 46 characters, inside the range that displays without truncation.
A meta description of 106 characters is present.
2 of 80 images carry no alt attribute, which leaves them unreadable to screen readers and uninterpretable to image search.
| Title | Acierto.com: Comparador de Seguros y Préstamos (46 chars) |
|---|---|
| Meta description | El comparador que te ayuda a ahorrar en tus seguros, préstamos, hipotecas y mucho más. ¡Compara y acierta! (106 chars) |
| H1 | Compara tus seguros y préstamos (1 on the page) |
| Canonical | https://www.acierto.com/ |
| Open Graph title | Acierto.com: Comparador de Seguros y Préstamos |
| Headings / images | 6 H2s, 80 images (2 without alt text) |
Is acierto.com served over a valid certificate?
The HTTPS certificate is issued by Sectigo Limited and is
valid until 2026-12-11, which is 68 days from the date of this check. It covers
2 hostnames.
- *.acierto.com
- acierto.com
The certificate has 68 days left to run.
It covers 2 hostnames, so it was issued for this site specifically.
Which security headers does it set?
1 of 6 are set (HSTS). Absent: Content Security Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy.
With no Content Security Policy, any script that reaches the page — including one injected through a compromised third-party dependency — runs with full access to it.
| Header | Set | Value |
|---|---|---|
| HSTS | yes | max-age=31536000; includeSubDomains; preload |
| Content Security Policy | no | — |
| X-Content-Type-Options | no | — |
| X-Frame-Options | no | — |
| Referrer-Policy | no | — |
| Permissions-Policy | no | — |
How is DNS configured for acierto.com?
| IP addresses | 82.223.134.118 |
|---|---|
| Reverse DNS | 82.223.134.118 |
| Name servers | charles.ns.cloudflare.com, stella.ns.cloudflare.com |
| Mail (MX) | acierto-com.mail.protection.outlook.com (pri 0) |
| SPF | v=spf1 mx ip4:66.220.20.0/26 ip4:82.223.134.0/24 ip4:82.223.133.0/24 ip4:82.223.208.92/32 ip4:217.116.29.165/32 ip4:217.116.20.164/32 ip4:167.89.44.128/32 ip4:50.31.40.3/32 ip4:149.72.49.227/32 include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.protection.outlook.com -all |
| TXT records | 14 |
acierto.com resolves to a single address, so there is no DNS-level redundancy.
Mail is handled by 1 exchanger.
An SPF record is published, giving receiving servers a rule for which hosts may send as this domain.
Reverse DNS resolves to 82.223.134.118, which usually names the hosting provider.
Who runs DNS and mail for acierto.com?
DNS is operated by Cloudflare rather than self-hosted name servers.
Mail is handled by Microsoft 365.
No AAAA records are published, so the site is reachable over IPv4 only.
Can acierto.com be spoofed in email?
DMARC is published with p=none, which monitors but does not act. Forged mail is still delivered; the owner just gets reports about it.
No CAA records are published, so any certificate authority may issue a certificate for this domain.
The zone is not DNSSEC-signed. That is still the norm for most domains, but it means DNS answers cannot be cryptographically verified.
What does robots.txt allow?
robots.txt is 5,411 bytes and names
123 user-agent groups.
It does not blanket-disallow general crawlers.
Sitemaps declared:
- https://www.acierto.com/smxml/sitemap.xml
AI crawler policy
robots.txt names no AI crawlers specifically, so they fall under whatever rule
applies to User-agent: *.
What structured data does the homepage publish?
- WebApplication
- AggregateRating
- Offer
The homepage publishes 3 structured data types: WebApplication, AggregateRating, Offer.
What does acierto.com load from third parties?
The homepage pulls resources from 1 third-party host (googletagmanager.com). Each one sees the visitor IP and user agent on every page load.
1 cookie is set before any interaction (PHPSESSID).
The page links or refers to X/Twitter, LinkedIn, Facebook, Instagram, YouTube, GitHub.
| Cookie | Secure | HttpOnly | SameSite |
|---|---|---|---|
| PHPSESSID | yes | no | none |
Does acierto.com settle on one address?
Plain HTTP redirects to HTTPS, so visitors who type the bare address still land on the secure version.
Both acierto.com and www.acierto.com answer with 200 and neither redirects to the other. Search engines therefore see two complete copies of the site, and link equity is split between them unless a canonical tag resolves it.
How easily can acierto.com be crawled?
A sitemap is served at https://www.acierto.com/smxml/sitemap.xml listing 1,151 entries.
The most recent lastmod date is 2026-09-24.
A deliberately invalid URL correctly returns HTTP 404, so missing pages will not be indexed.
What tracking does acierto.com run?
2 tracking scripts detected: Google Analytics, Google Tag Manager.
A consent platform is in place (Cookiebot), so in the EU and UK these should only fire after the visitor agrees.
How does acierto.com look when shared?
3 of 5 social preview tags are set. Missing: og:description, twitter:card.
How are images, fonts and scripts handled?
82 images on the homepage, 32 of them lazy-loaded (39%).
All image references use JPEG, PNG or GIF. WebP or AVIF typically cut image weight substantially at the same visual quality.
No srcset attributes are used, so every device is served the same image size regardless of screen.
The page pulls 0 external stylesheets and 0 external scripts, with 0 carrying defer or async.
Responses carry Cloudflare edge headers, so content is served from a CDN rather than straight from the origin.
Is acierto.com accessible and current?
The page uses 0 landmark elements and 11 ARIA attributes.
There are 4 form inputs but only 2 label elements, so some fields may be unlabelled for screen readers.
No skip-to-content link was found, which keyboard users rely on to bypass navigation.
The visible copyright notice reads 2011, 15 years behind the current year, which usually indicates the site is not actively maintained.
Can search engines index acierto.com?
Nothing on the homepage prevents indexing: no noindex is set in the robots meta tag or the X-Robots-Tag header.
The homepage carries 271 internal and 5 external links across 5 outside hosts.
Visible text makes up 12.4% of the HTML.
The heading outline skips 1 level, which breaks the document structure screen readers navigate by.
How is acierto.com delivered?
The HTML is served with Cache-Control: no-store, no-cache, must-revalidate.
A web app manifest is declared, so the site is installable as a progressive web app.
Frequently asked questions
Does acierto.com set the usual HTTP security headers?
It sets 1 of 6. The ones not present are: Content Security Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy.
Does acierto.com allow AI crawlers?
robots.txt names no AI crawler specifically, so they fall under the wildcard rule, which does not disallow them.
What is acierto.com built with?
The homepage exposes these fingerprints: Google Analytics, Google Tag Manager, Cloudflare. A site behind a CDN or rendered server-side may use more than it reveals.
Where does this data come from?
Every figure was measured by our own server on 4 October 2026: DNS lookups, one HTTPS request to the homepage, a TLS handshake and a request for robots.txt. No third-party SEO API is involved.
Is any of this traffic or authority data?
No. Traffic, authority and ranking figures cannot be measured by inspecting a domain, only modelled. Everything here is a direct observation.
I own acierto.com and want this page removed.
Ask through the contact page on this site, from an address at the domain, and the report will be taken down. It only ever shows what the domain already serves publicly.
Analysed 4 October 2026.
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