Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Singapore, Singapore

301 Moved Permanently

Checks

3 PASS 5 REVIEW 1 FIX

CDN & Delivery

Action

No CDN detected

FIX

No CDN detected

A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.

No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

Redirect Chain

1 redirect(s), 1717 ms total

REVIEW

1 redirect(s), 1717 ms total

Single redirect

Got: https://mercadolivre.com.br → https://www.mercadolivre.com.br/ (301)

WWW normalization redirect

Redirect overhead: 1717 ms total

Got: 1717 ms

https://mercadolivre.com.br

663 ms · HTTP/1.1

301

https://www.mercadolivre.com.br/

1054 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://mercadolivre.com.br	301	663 ms	HTTP/1.1	Tengine
2	https://www.mercadolivre.com.br/	200	1054 ms	HTTP/1.1	Tengine

See the visual redirect chain in the HTTP Probe tab →

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

No IPv6 (AAAA) records found

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

No IPv6 Support

About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

Crawlability

robots.txt present, no sitemap

REVIEW

robots.txt present, no sitemap

robots.txt is present

Got: 2661 bytes

No sitemap.xml found

A sitemap helps search engines discover and index your pages more efficiently.

robots.txt does not reference a sitemap

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK

Size 2661 B Sitemaps referenced 0 User-agents LinkedInBot, PerplexityBot, Perplexity-User, ClaudeBot, FacebookExternalHit, Bingbot, *, Amazonbot, Claude-User, GPTBot, ChatGPT-User, FacebookBot, Twitterbot Blocking No — crawling allowed

User-agent: Amazonbot
User-agent: PerplexityBot
User-agent: Perplexity-User
User-agent: ClaudeBot
User-agent: Claude-User
User-agent: GPTBot
User-agent: ChatGPT-User
Disallow: /

User-agent: FacebookExternalHit
User-agent: FacebookBot
User-agent: Twitterbot
User-agent: LinkedInBot
Allow: /

User-agent: Bingbot
Crawl-delay: 5
Disallow: /HOME/
Disallow: /gz/merch/
Disallow: /gz/menu
Disallow: /gz/webdevice/config
Disallow: /gz/referidos
Disallow: /*www.siteinfo.cf
Disallow: /gz/cart/
Disallow: /gz/checkout/
Disallow: /gz/user-logged
Disallow: /gz/shipping-selector
Disallow: /gz/navigation/searches/last
Disallow: /pagina/*_id
Disallow: /tienda/*_id
Disallow: /p/api/frontend-statsd*
Disallow: /perfil/vendedor/
Disallow: /perfil/comprador/
Disallow: /perfil/profile/
Disallow: /perfil/jm/profile
Disallow: /perfil/ALEXSETHMS
Disallow: /noindex/
Disallow: /navigation/
Disallow: /*itemid
Disallow: /*/jm/item
Disallow: /recommendations*
Disallow: /*attributes=
Disallow: /*quantity=
Disallow: /org-img/html/
Disallow: /registration?confirmation_url*
Disallow: /home/recommendations
Disallow: /social/
Disallow: /adn/api*
Disallow: /product-fe-recommendations/recommendations*
Disallow: /*.js
Disallow: /finditem.ml
Disallow: /afiliados/item/
Disallow: /*/p/MLB*/s
Disallow: /*/p/MLB*/seller-info
Disallow: /*/p/MLB*/specifications
Disallow: /anuncie
Disallow: /gz/
Disallow: /blog/cg-*
Disallow: /mais-vendidos/MLB
Disallow: /ofertas?
Allow: /home/recommendations/pom

User-agent: *
Disallow: /HOME/
Disallow: /gz/merch/
Disallow: /gz/menu
Disallow: /gz/webdevice/config
Disallow: /gz/referidos
Disallow: /*www.siteinfo.cf
Disallow: /gz/cart/
Disallow: /gz/checkout/
Disallow: /gz/user-logged
Disallow: /gz/shipping-selector
Disallow: /gz/navigation/searches/last
Disallow: /pagina/*_id
Disallow: /tienda/*_id
Disallow: /p/api/frontend-statsd*
Disallow: /perfil/vendedor/
Disallow: /perfil/comprador/
Disallow: /perfil/profile/
Disallow: /perfil/jm/profile
Disallow: /perfil/ALEXSETHMS
Disallow: /noindex/
Disallow: /navigation/
Disallow: /*itemid
Disallow: /*/jm/item
Disallow: /recommendations*
Disallow: /*attributes=
Disallow: /*quantity=
Disallow: /org-img/html/
Disallow: /registration?confirmation_url*
Disallow: /home/recommendations
Disallow: /social/
Disallow: /adn/api*
Disallow: /product-fe-recommendations/recommendations*
Disallow: /*.js
Disallow: /finditem.ml
Disallow: /afiliados/item/
Disallow: /clips/*short_id*
Disallow: /*/p/MLB*/s
Disallow: /*/p/MLB*/seller-info
Disallow: /*/p/MLB*/specifications
Disallow: /anuncie
Disallow: /gz/
Disallow: /blog/cg-*
Disallow: /mais-vendidos/MLB
Disallow: /ofertas?
Allow: /home/recommendations/pom

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

REVIEW

www/non-www, trailing slash, HTTP→HTTPS

Both www and non-www versions serve content

Got: Both variants return 200 Expected: One variant 301-redirects to the other

HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.mercadolivre.com.br/

200https://mercadolivre.com.br/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://mercadolivre.com.br/ → https://mercadolivre.com.br:443/

Consistent

TLS Certificate Expiry & Recommendations

202 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

202

days left

0d 30d 60d 90d+

Recommended actions

Submit your domain to hstspreload.org to be added to the Chrome preload list
Enable DNSSEC on your domain for DNS spoofing protection
Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy

A+

DNS Records

2 A records, 109 ms lookup

PASS

2 A records, 109 ms lookup

Resolves to 2 IPv4 address(es)

Got: 3.33.182.45, 15.197.170.90

No IPv6 (AAAA) records

4 nameserver(s) configured

Got: ns-1387.awsdns-45.org, ns-1828.awsdns-36.co.uk, ns-341.awsdns-42.com, ns-653.awsdns-17.net

5 mail exchanger(s) configured

CAA records not checked

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

SPF record present in TXT

DNS resolution time: 109 ms

Got: 109 ms

A	3.33.182.45, 15.197.170.90
AAAA	—
CNAME	—
NS	ns-1387.awsdns-45.org, ns-1828.awsdns-36.co.uk, ns-341.awsdns-42.com, ns-653.awsdns-17.net
MX	1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com
TXT	403c18eed6474553b2742a30b57183c9 82pklh96dzn1ry2x7d03105zk3t6hdj5 9bfcb59838184e8ca4c8cd1b354fafae facebook-domain-verification=myq6aiia3ldx5pl57qy5y948mp7l4x google-site-verification: a2POMzSvABAhq09hwo-YmFXDhH6qa8ti5oBohDxv620 google-site-verification=0G7TiqipO2eAw1v1_LoopB-z3jYnBIGk5Z999kLbcLU google-site-verification=2KSdyTSJ_RAWIzc8-d_XXRWRkBU6mcNKwFkwtuM1Gwo google-site-verification=TVNJ1M48L2qV8b_xEqBRK3CG_Is38W5CmkhMUnuOp2A google-site-verification=Uqot7VA01etpwB6KRXBAMoHPs2pdF3CshlcbdH4snqc miro-verification=2a505fedfeda2411c7c140f1cba9c895aa186d78 monday-com-verification=G6gWiJdNb9CBcH8BHiELjqXSmd9b04RarDTXkffu_-k postman-domain-verification=3c97b873a0f2068b021acb5c4353b9a482aed6e68beef2031f26... tiktok-developers-site-verification=v0NzFkAEqt8vdTdicAvoTE56FaE5QlAV SPF v=spf1 ip4:108.177.8.0/21 ip4:108.177.96.0/19 ip4:172.217.0.0/19 ip4:172.217.128...
CAA	Lookup not available with standard resolver

Resolved in 109 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A+

Domain Intelligence

mercadolivre.com.br — 27 years, 3 months old, hosted on AWS

PASS

mercadolivre.com.br — 27 years, 3 months old, hosted on AWS

Domain registered until May 14, 2027 (1 years, 1 months remaining)

DNSSEC is not enabled

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Registrar lock is NOT enabled

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Hosting: AWS

Got: AS16509

Domain expiry

305 days

May 14, 2027

SSL certificate

202 days

Issued by Amazon

Domain age

27 years, 3 months

Registered May 14, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

3.33.182.45

Registrar

Registrar unknown

Unlocked 4 NS records

Expiry timeline

Today

+1 year

Domain expiry SSL expiry Danger zone (≤30 days)

Recommended actions

Enable DNSSEC to protect visitors from DNS spoofing
Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers

Registrar

Created May 14, 1999 (27 years, 3 months ago)

Expires May 14, 2027 (1 years, 1 months)

Last Updated November 6, 2025

Name Servers ns-1387.awsdns-45.org, ns-341.awsdns-42.com, ns-653.awsdns-17.net, ns-1828.awsdns-36.co.uk

DNSSEC Not enabled

Registrant Ebazar.Com.Br Ltda

Hosting

IP Address 3.33.182.45

ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)

Provider AWS

Data source: rdap (1.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

HTTP Probe Timing

Total 655 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

5 ms

TCP Connect

1 ms

TLS Handshake

432 ms

Time to First Byte

656 ms

Total Time

656 ms

Connection waterfall

DNS Lookup 5 ms TCP Connect 1 ms TLS Handshake 432 ms Server Processing 218 ms Content Transfer 0 ms

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.