Skip to content
https://vivo.com.cn

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
80
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
4 PASS 4 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
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.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
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

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 10240 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

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 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<!DOCTYPE html><html  lang="en-US" class="extra-desktop-style"><head><meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>vivo Smartphones, Earphones, Wearables &amp; Accessories | vivo EU </title>
<script src="https://portalstatic-ex.vivo.com/js/jquery-3.6.0.min.js" type="text/javascript" id="jquery-3.6.0.min-js"></script>
<style>:root { --brandColor: #415fff;--brandDarkColor: #546fff;--brandHoverColor: rgba(65, 95, 255, 0.73);--global-font-family: "vivoSansSC","languageFont","AvenirNext","Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu,sans-serif,"WebRupee"; }</style>
<style>
    @font-face {
        font-family: 'AvenirNext';
        src: url('//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_17c1dc8.eot'),url('//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_6b6dbe3.woff2') format('woff2'),url('//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_2d26b87.woff') format('woff'),url('//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_c99fe90.ttf') format('truetype'),url('//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_e7a17f8.svg') format('svg');
        font-weight: normal;
        font-style: normal;
    font-display: swap; }
    @font-face {
        font-family: 'WebRupee';
        src: url('//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_b9b282e.eot'),url('//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_5dc4203.woff2') format('woff2'),url('//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_5bb128f.woff') format('woff'),url('//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_388288f.ttf') format('truetype'),url('//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_77414ca.svg') format('svg');
        font-weight: normal;
        font-style: normal;
    font-display: swap; }
                @font-face {
                font-family: 'languageFont';
                src: url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478800314/82bfab0ac9926e251809d15af54fb14e.eot') ,url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478808474/366787f43c43731f2af53a224f353bbe.woff2') format('woff2'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478813968/e8d002af09a09f5402cf41ef85587145.woff') format('woff'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478843478/19d8488432f882ef1503db93a5931dd8.ttf') format('truetype'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478833956/21f30c285f083c824c2378f2b8e86034.svg') format('svg');
                font-weight: normal;
                font-style: normal;
            font-display: swap; }
            @font-face {
                font-family: 'languageFont1';
                src: url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190909671/4677ebd7ae38b8be9add78de6405beab.eot') ,url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190913882/393ccffe7269f925987d2f70e65476d4.woff2') format('woff2'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190918088/b87c54eb5644c7b4947ed16e4c447e1d.woff') format('woff'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190924128/340dcc3f6410a4926feac6918f02e550.ttf') format('truetype'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190932078/88cee532c04015cd5f1dbabee830f762.svg') format('svg');
                font-weight: normal;
                font-style: normal;
            font-display: swap; }
            @font-face {
                font-family: 'languageFont2';
                src: url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190955231/c4642f2dbf0d55b47b0ff41d851490f1.eot') ,url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190962480/81b34a1a609f09194fb7c0218d34b4cd.woff2') format('woff2'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190968028/c298373e42cc78c72b61fd6f9566ab49.woff') format('woff'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190978367/d327f0b3b09f13ec67306b0e4bf2a12f.ttf') format('truetype'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190983000/c2fd6d97f8226a5131974c9723044bb9.svg') format('svg');
                font-weight: normal;
                font-style: normal;
            font-display: swap; }
            @font-face {
                font-family: 'languageFont3';
                src: url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191027561/cdea7113bc7a573e913342a1067936a7.eot') ,url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191033164/9ad389783811fbb7ec4ec62aaceb5f9f.woff2') format('woff2'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191037342/e8c72dee1130d41398fc413ba2e98321.woff') format('woff'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191042986/5d8e1c0c0f421db794d8c41520e3db34.ttf') format('truetype'),url('https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191049370/67097b46b4b102330a8cf77e2599fcce.svg') format('svg');
                font-weight: normal;
                font-style: normal;
            font-display: swap; }
    .public *,
    .vep-public *,
    #vcm-v-consent-sdk * {
        font-family: "languageFont","languageFont1","languageFont2","languageFont3","AvenirNext","Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu,sans-serif,"WebRupee";
        
    }
</style>
<link rel="stylesheet" href>
<link rel="stylesheet" href="//asia-exstatic.vivoglobal.com/static/bus/common/css/vicon_eb95211.css">
<link rel="stylesheet" href="//asia-exstatic.vivoglobal.com/static/bus/include/vep-new-global/dist/css/vivo_9b1fa29.css">
<link rel="stylesheet" href="https://portalstatic-ex.vivo.com/_nuxt/entry.D0e9a9_I.css" crossorigin>
<link rel="stylesheet" href="https://portalstatic-ex.vivo.com/_nuxt/default.CtdS0OEi.css" crossorigin>
<link rel="stylesheet" href="https://portalstatic-ex.vivo.com/_nuxt/index.JbUrGDf8.css" crossorigin>
<link rel="preload" as="font" type="font/woff2" href="//asia-exstatic.vivoglobal.com/static/font/AvenirNext/AvenirNextRegular_e7a17f8.svg" crossorigin="anonymous">
<link rel="preload" as="font" type="font/woff2" href="//asia-exstatic.vivoglobal.com/static/font/currency/WebRupee.V2.0_77414ca.svg" crossorigin="anonymous">
<link rel="preload" as="font" type="font/woff2" href="https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1719478833956/21f30c285f083c824c2378f2b8e86034.svg" crossorigin="anonymous">
<link rel="preload" as="font" type="font/woff2" href="https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190932078/88cee532c04015cd5f1dbabee830f762.svg" crossorigin="anonymous">
<link rel="preload" as="font" type="font/woff2" href="https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760190983000/c2fd6d97f8226a5131974c9723044bb9.svg" crossorigin="anonymous">
<link rel="preload" as="font" type="font/woff2" href="https://eu-exstatic-vivofs.vivo.com/8Xa6evfY85lu15Pb/1760191049370/67097b46b4b102330a8cf77e2599fcce.svg" crossorigin="anonymous">
<link rel="modulepreload" as="script" crossorigin href="https://portalstatic-ex.vivo.com/_nuxt/DnJDNhe7.js">
<link rel="modulepreload" as="script" crossorigin href="https://portalstatic-ex.vivo.com/_nuxt/Cdj7bKnM.js">
<link rel="modulepreload" as="script" crossorigin href="https://portalstatic-ex.vivo.com/_nuxt/B5Halex4.js">
<link rel="modulepreload" as="script" crossorigin href="https://portalstatic-ex.vivo.com/_nuxt/BuCLus8g.js">
<link rel="modulepreload" as="script" crossorigin href="https://portalstatic-ex.vivo.com/_nuxt/BWftM4TU.js">
<link rel="preload" as="fetch" fetchpriority="low" crossorigin="anonymous" href="https://portalstatic-ex.vivo.com/_nuxt/builds/meta/5ca674b9-0b78-4c59-91ad-713599319481.json">
<link rel="dns-prefetch" href="//asia-exstatic.vivoglobal.com">
<link rel="dns-prefetch" href="//www.googletagmanager.com">
<link rel="dns-prefetch" href="//www.google-analytics.com">
<link rel="dns-prefetch" href="//asia-exstatic-vivofs.vivo.com">
<link rel="prefetch" as="image" type="image/x-icon" href="https://portalstatic-ex.vivo.com/_nuxt/favicon-iqoo.D8dd7MA_.ico">
<link rel="prefetch" as="image" type="image/png" href="https://portalstatic-ex.vivo.com/_nuxt/wechat.DfvKeLMW.png">
<link rel="prefetch" as="image" type="image/png" href="https://portalstatic-ex.vivo.com/_nuxt/miniProgram.B3JeGqpv.png">
<link rel="prefetch" as="image" type="image/svg+xml" href="https://portalstatic-ex.vivo.com/_nuxt/vivo-icons.tksFTeK5.svg">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
<meta name="format-detection" content="telephone=no,email=no">
<meta name="color-scheme" content="light dark">
<link rel="icon" type="image/x-icon" href="data:image/x-icon;base64,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
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.vivo.com.cn/
200https://vivo.com.cn/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://vivo.com.cn/ → https://www.vivo.com/eu

Consistent

B
TLS Certificate Expiry & Recommendations
79 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

79
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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
1 A records, 32 ms lookup
PASS
1 A records, 32 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 47.254.179.134
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns4.dnsv5.com, ns3.dnsv5.com
Info::
1 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 32 ms
Got: 32 ms
A47.254.179.134
AAAA—
CNAME—
NSns4.dnsv5.com, ns3.dnsv5.com
MX
5 vivo-com-cn.mail.protection.outlook.com
TXT
SPF v=spf1 include:spf.protection.outlook.com -all
3kgdt16mvzgp778nk3cfwqmt1z2x65kk
MS=ms45125099
CAALookup not available with standard resolver
Resolved in 32 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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
Redirect Chain
1 redirect(s), 446 ms total
PASS
1 redirect(s), 446 ms total
Info::
Single redirect
Got: https://vivo.com.cn → https://www.vivo.com/eu (301)
Info::
WWW normalization redirect
Info::
Cross-domain redirect detected

https://vivo.com.cn

110 ms · HTTP/1.1

301

https://www.vivo.com/eu

336 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://vivo.com.cn301110 msHTTP/1.1
2https://www.vivo.com/eu200336 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
vivo.com.cn — via 贵州中域智科网络技术有限公司, 16 years, 5 months old, hosted on Alibaba Cloud
PASS
vivo.com.cn — via 贵州中域智科网络技术有限公司, 16 years, 5 months old, hosted on Alibaba Cloud
Info::
Domain registered until Jan 28, 2031 (4 years, 10 months remaining)
Info::
Registrar: 贵州中域智科网络技术有限公司
Info::
Registrar lock is enabled
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Info::
Hosting: Alibaba Cloud
Got: AS45102
Domain expiry

1659 days

January 28, 2031

SSL certificate

79 days

Issued by DigiCert, Inc.

Domain age

16 years, 5 months

Registered January 28, 2010

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Alibaba Cloud

ASN AS45102

47.254.179.134

Registrar

贵州中域智科网络技术有限公司

Locked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar 贵州中域智科网络技术有限公司
Created January 28, 2010 (16 years, 5 months ago)
Expires January 28, 2031 (4 years, 10 months)
Name Servers ns3.dnsv5.com, ns4.dnsv5.com
Hosting
IP Address 47.254.179.134
ASN AS45102 (ALIBABA-CN-NET Alibaba US Technology Co., Ltd., CN)
Provider Alibaba Cloud
Data source: whois (1.1s)

Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.

Why this matters

Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 147 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
29 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
25 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
66 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
147 ms
Total Time Total request time from DNS lookup through full response.
147 ms

Connection waterfall

DNS Lookup 29 ms TCP Connect 25 ms TLS Handshake 66 ms Server Processing 27 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.

Send Feedback