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https://autohome.com.cn

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
76
GRADE
C
FIX
2
REVIEW
4
PASS
3
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
3 PASS 4 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 301 Expected: 301 redirect to HTTPS

www / non-www

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

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://autohome.com.cn/ → http://www.autohome.com.cn

HTTP version does not redirect to HTTPS

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.

B
Redirect Chain
1 redirect(s), 1499 ms total
REVIEW
1 redirect(s), 1499 ms total
Info::
Single redirect
Got: https://autohome.com.cn → https://www.autohome.com.cn (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1499 ms total
Got: 1499 ms

https://autohome.com.cn

681 ms · HTTP/1.1

301

https://www.autohome.com.cn

818 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://autohome.com.cn301681 msHTTP/1.1nginx/1.20.1
2https://www.autohome.com.cn200818 msHTTP/1.1openresty

See the visual redirect chain in the HTTP Probe tab →

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

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 10240 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
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 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<!DOCTYPE html><html lang="zh-CN"><head><meta charSet="utf-8"/><script>!function(){var t="__WEB_SDK_DOMAIN__",n=["pic-b.autoimg.cn","pic-a.autoimg.cn","pic-c.autoimg.cn"],r="/z.autoimg.cn/api/web/sdk";window.webSDKScriptLoadHandleError=function(c,o){o=o||[];var a,i,l,d=null;try{d=new URL(c.src).host}catch(e){d=c.src}if(d&&-1!==n.indexOf(d)&&-1===o.indexOf(d)&&o.push(d),!(o.filter(function(t){return -1!==n.indexOf(t)}).length>=n.length)){var u=(a=o,i=n.filter(function(t){return -1===a.indexOf(t)}),(l=localStorage.getItem(t))&&-1!==i.indexOf(l)?localStorage.getItem(t):i.length?i[0]:null);if(u)try{var f=document.createElement("script"),g="";try{var h=new URL(c.src);g=r+h.search}catch(e){g=r}f.src="https://"+u+g,f.onerror=function(){localStorage.removeItem(t),c.parentNode&&c.parentNode.removeChild(c),webSDKScriptLoadHandleError(f,o.slice())},f.onload=function(){localStorage.setItem(t,u)},document.head.appendChild(f)}catch(e){}}}}();</script><script src="//z.autoimg.cn/api/web/sdk?type=pc&amp;env=prod&amp;output=script&amp;ids=1%2C40%2C0"></script><link rel="dns-prefetch" href="https://z.autoimg.cn"/><link rel="dns-prefetch" href="https://x.autoimg.cn"/><link rel="dns-prefetch" href="https://g.autoimg.cn"/><link rel="dns-prefetch" href="https://sou.api.autohome.com.cn"/><link rel="dns-prefetch" href="https://al.autohome.com.cn"/><link rel="dns-prefetch" href="https://msg.autohome.com.cn"/><link rel="apple-touch-icon" href="https://z.autoimg.cn/pcm/image/app_logo_256x256.png"/><link rel="apple-touch-icon" href="https://z.autoimg.cn/pcm/image/app_logo_512x512.png" sizes="512x512"/><link rel="apple-touch-icon" href="https://z.autoimg.cn/pcm/image/app_logo_1024x1024.png" sizes="1024x1024"/><link rel="icon" href="https://www.autohome.com.cn/favicon.ico" type="image/x-icon" sizes="32x32"/><meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"/><meta http-equiv="X-UA-Compatible" content="ie=edge, chrome=1"/><meta name="format-detection" content="telephone=no"/><meta name="apple-itunes-app" content="app-id=415842508"/><meta name="renderer" content="webkit"/><meta property="og:site_name" content="汽车之家"/><meta property="og:type" content="website"/><link rel="preload" as="image" href="https://z.autoimg.cn/fe/auto-header/images/logo.png"/><link href="https://z.autoimg.cn/pcm/icon/weather_blank.png" rel="preload" as="image"/><title>汽车之家_看车 买车 用车 换车,省时省心省钱!</title><link rel="dns-prefetch" href="https://adm2.autoimg.cn"/><link rel="dns-prefetch" href="https://adm3.autoimg.cn"/><link rel="dns-prefetch" href="https://car2.autoimg.cn"/><link rel="dns-prefetch" href="https://car3.autoimg.cn"/><link rel="dns-prefetch" href="https://m1.autoimg.cn"/><link rel="dns-prefetch" href="https://www.autohome.com.cn/web-main"/><link rel="dns-prefetch" href="https://pcmx.autohome.com.cn"/><link rel="dns-prefetch" href="https://cmsin.api.autohome.com.cn"/><link rel="dns-prefetch" href="https://survey.autohome.com.cn"/><meta content="汽车,汽车之家,汽车网,汽车报价,汽车图片,新闻,评测,社区,俱乐部" name="keywords"/><meta content="汽车之家为您提供最新汽车报价，汽车图片，汽车价格大全，最精彩的汽车新闻、行情、评测、导购内容，是提供信息最快最全的中国汽车网站" name="description"/><meta property="og:title" content="汽车之家_看车 买车 用车 换车,省时省心省钱!"/><meta property="og:tag" content="汽车,汽车之家,汽车网,汽车报价,汽车图片,新闻,评测,社区,俱乐部"/><meta property="og:description" content="汽车之家为您提供最新汽车报价，汽车图片，汽车价格大全，最精彩的汽车新闻、行情、评测、导购内容，是提供信息最快最全的中国汽车网站"/><meta property="og:image" content="https://z.autoimg.cn/pcm/www/images/home-share-logo.png"/><base target="_blank"/><script>var pvTrack = {site: 1, category: 40, subcategory: 0};</script><script id="windowAccountConfig">window.__AccountConfig = {fPosition: '10001', sPosition: '1000100', platform: 1}</script><link rel="stylesheet" href="//z.autoimg.cn/car_pc_nextjs/public/css/home.ui.min.css?v=prod-c_1.0.177-p_2.36.0"/><link rel="preload" as="image" href="//g.autoimg.cn/@img/img3/chejiahaodfs/g33/M06/10/DD/800x310_autohomecar__Chto52noMsaAB5RMABNFZtCoPHQ678.png" imageSrcSet="//g.autoimg.cn/@img/img3/chejiahaodfs/g33/M06/10/DD/800x310_autohomecar__Chto52noMsaAB5RMABNFZtCoPHQ678.png"/><meta name="next-head-count" content="43"/><script src="https://x.autoimg.cn/bi/mda/ahas_head.min.js"></script><style>#__next{width: 100%; min-height: 100vh; height: 100%; }</style><script id="js-scroll-restore-ctr" data-nscript="beforeInteractive">history.scrollRestoration = "manual";</script><link rel="preload" href="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/css/04e6f883f164f54e.css?dpl=prod-c_1.0.177-p_2.36.0" as="style"/><link rel="stylesheet" href="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/css/04e6f883f164f54e.css?dpl=prod-c_1.0.177-p_2.36.0" data-n-g=""/><link rel="preload" href="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/css/aa06b2fed107d93d.css?dpl=prod-c_1.0.177-p_2.36.0" as="style"/><link rel="stylesheet" href="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/css/aa06b2fed107d93d.css?dpl=prod-c_1.0.177-p_2.36.0" data-n-p=""/><noscript data-n-css=""></noscript><script defer="" nomodule="" src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/polyfills-42372ed130431b0a.js?dpl=prod-c_1.0.177-p_2.36.0"></script><script src="//x.autoimg.cn/engine/root/fggxl.js" defer="" data-nscript="beforeInteractive"></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/webpack-9d2cf9321ce45e95.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/framework-6603b6fce1ea64cf.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/main-f6a1b723d4ecff77.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/pages/_app-e8d0b784eb8a6838.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/6005-9a4ee9470bae3339.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/2489-b0db45961e1c2a3c.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/4734-b74f624595eedf22.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/2670-1f353aa4cbb23bdb.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/8116-18a33abe9b595696.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/4586-8d60c4abb6015f30.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/9090-250e01d1053d230c.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/3752-cdc7f78f45bb9bd9.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/2130-064efe9b2bd749dd.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/6886-f73929f16b6bbb96.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/4588-ae643bfcd41d2584.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/7812-4580a02dd930e4be.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/8584-83018a012a44c65b.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/9666-d740e39a4b7270a8.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/5589-580d7d26a5a37987.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/9480-978329c98c81ea08.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/chunks/pages/home-85c686da6bf27358.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/nextweb_zixun-prod-c_1.0.177-p_2.36.0/_buildManifest.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script><script src="//z.autoimg.cn/car_pc_nextjs/nextweb_zixun/_next/static/nextweb_zixun-prod-c_1.0.177-p_2.36.0/_ssgManifest.js?dpl=prod-c_1.0.177-p_2.36.0" defer=""></script></head><body><script src="https://x.autoimg.cn/bi/mda/ahas_body.min.js"></script><div id="__next"><svg version="1.1" xmlns="http://www.w3.org/2000/svg" fill="none" style="display:none"><symbol id="auto-header_download_app" viewBox="0 0 18 18" fill="none"><path d="M13.25 14.775V17.4h1.5v-2.625h-1.5zm2.7 0V17.4h1.5v-2.625h-1.5z" fill-rule="evenodd" fill="currentColor"></path><rect x="1.35" y="1.35" width="6.3" height="6.3" rx="0" stroke-width="1.5" stroke="currentColor"></rect><rect x="3.6" y="3.6" width="1.8" height="1.8" rx="0" fill="currentColor"></rect><rect x="12.6" y="3.6" width="1.8" height="1.8" rx="0" fill="currentColor"></rect><rect x="1.35" y="10.35" width="6.3" height="6.3" rx="0" stroke-width="1.5" stroke="currentColor"></rect><path d="M17.4 13.831V9.675h-1.5v2.656h-1.2V9.6H9.6v7.725h1.5V11.1h2.1v2.731h4.2z" fill-rule="evenodd" fill="currentColor"></path><rect x="3.6" y="12.6" width="1.8" height="1.8" rx="0" fill="currentColor"></rect><rect x="10.35" y="1.35" width="6.3" height="6.3" rx="0" stroke-width="1.5" strok
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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

Certificate validity

322
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
2 A records, 39 ms lookup
PASS
2 A records, 39 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 116.181.15.207, 124.250.78.6
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns4.dnsv5.com, ns3.dnsv5.com
Info::
3 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: 39 ms
Got: 39 ms
A116.181.15.207, 124.250.78.6
AAAA—
CNAME—
NSns4.dnsv5.com, ns3.dnsv5.com
MX
10 mx3.autohome.com.cn
20 mx2.autohome.com.cn
20 mx1.autohome.com.cn
TXT
SPF v=spf1 mx ip4:103.75.152.145 ip4:103.75.152.146 ip4:114.251.201.21 ip4:103.75.15...
apple-domain-verification=aMfEv5C8pNNdMBi0
google-site-verification=21jelXiU7ua2z5U1LYl7WIZ_Vu7ok2i3P2Pd24PdPjs
MS=D8B554A02799E1BEB077D3BA757D08240975716E
MS=ms23859864
google-site-verification=cEH8Wi0vsA3NOl8h2H2UmyMO-9WP-ZpVR_EF6d0HoFM
google-site-verification=_u2DdXFQHL8wOwih753AvRdjbDXCKyNtXPauYEU0M8Y
CAALookup not available with standard resolver
Resolved in 39 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
autohome.com.cn — via 阿里云计算有限公司（万网）, 21 years, 10 months old, hosted on UNICOM-CN China Unicom IP network, CN
PASS
autohome.com.cn — via 阿里云计算有限公司（万网）, 21 years, 10 months old, hosted on UNICOM-CN China Unicom IP network, CN
Info::
Domain registered until Oct 12, 2030 (4 years, 6 months remaining)
Info::
Registrar: 阿里云计算有限公司（万网）
Warning::
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.
Info::
Hosting: UNICOM-CN China Unicom IP network, CN
Got: AS133119
Domain expiry

1552 days

October 12, 2030

SSL certificate

322 days

Issued by DigiCert, Inc.

Domain age

21 years, 10 months

Registered October 12, 2004

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

UNICOM-CN China Unicom IP network, CN

ASN AS133119

116.181.15.207

Registrar

阿里云计算有限公司（万网）

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar 阿里云计算有限公司（万网）
Created October 12, 2004 (21 years, 10 months ago)
Expires October 12, 2030 (4 years, 6 months)
Name Servers ns3.dnsv5.com, ns4.dnsv5.com
Hosting
IP Address 116.181.15.207
ASN AS133119 (UNICOM-CN China Unicom IP network, CN)
Provider UNICOM-CN China Unicom IP network, CN
Data source: whois (1.4s)

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

A
HTTP Probe Timing
Total 698 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
39 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
164 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
331 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
699 ms
Total Time Total request time from DNS lookup through full response.
699 ms

Connection waterfall

DNS Lookup 39 ms TCP Connect 164 ms TLS Handshake 331 ms Server Processing 165 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.

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