calculoexato.com.br

Readiness by lane

Green: calculoexato.com.br. Thin bar: Web Tools peer median.

Priority fixes for calculoexato.com.br

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

1. Priority 1 · Harden

   Certificate has more than 14 days left

   Observed: The certificate from GoDaddy.com, Inc. was due to expire on 2026-11-01 (8 days after the check).

   Why it matters: An expired certificate makes browsers show a full-page warning. Renewing well ahead of expiry leaves time to fix a failed renewal.

   What to do: Automate renewal with ACME (for example Let's Encrypt or your CDN's managed certificates) and add a renewal review to your release calendar so any certificate inside 21 days of expiry gets attention.

   >99% of Web Tools 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 · Accelerate

   HTML compressed

   Observed: The homepage HTML (42 KB) was delivered without gzip, Brotli or zstd compression.

   What to do: Enable Brotli or gzip for text responses (HTML, CSS, JavaScript, JSON, SVG) at the CDN or origin.

   97% of Web Tools peers do this.

   Guide: How to Set a Website Performance Budget That Teams Can Keep

3. Priority 3 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   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.

   92% of Web Tools peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

4. Priority 4 · 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.

   30% of Web Tools peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

What calculoexato.com.br already does well

Practices fewer than half of Web Tools peers use.

• DNSSEC signedDNSSEC delegation (DS record) present.9.3% of peers

What we saw

Homepage checked

https://calculoexato.com.br/

Homepage response

HTTP 200

TLS

TLSv1.2, HTTP/2

Certificate

GoDaddy, 198-day validity, expiring 2026-11-01

DNS operators

1 self-run or other nameserver domain

Homepage HTML

42 KB, uncompressed

Images on homepage

18 (png 6)

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 Web Tools sites

• awesomescreenshot.com42
• samanehha.com35
• telegram.im43
• webqr.com30
• youtubemultiplier.com42

Web Tools readiness benchmark