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 New York, United Stated

302 Found

Checks

2 PASS 6 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), 1501 ms total

REVIEW

1 redirect(s), 1501 ms total

Single redirect

Got: https://1688.com → https://www.1688.com/ (302)

WWW normalization redirect

Uses 302 (temporary) redirect

If permanent, use 301 instead.

Got: https://1688.com

Redirect overhead: 1501 ms total

Got: 1501 ms

https://1688.com

977 ms · HTTP/1.1

302

https://www.1688.com/

524 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://1688.com	302	977 ms	HTTP/1.1	Tengine
2	https://www.1688.com/	200	524 ms	HTTP/1.1	Tengine

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

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

Action

robots.txt present, sitemap with 0 URLs

REVIEW

robots.txt present, sitemap with 0 URLs

robots.txt is present

Got: 8238 bytes

sitemap.xml is present

sitemap.xml contains invalid XML

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

sitemap.xml is empty — no URLs found

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

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 8238 B Sitemaps referenced 0 User-agents Googlebot, bingbot, MSNBot, 360Spider, *, Baiduspider Blocking No — crawling allowed

## -----------------------------------------------------------------------------
## author shenyong modify by dongfang.zdf 2020.03.05
## fileEncoding = UTF-8
##
## -----------------------------------------------------------------------------
User-agent: *
Allow: /wiki/?
Allow: /chanpin/index.html?
Allow: /chanpin/--*.html
Allow: /topic/index.html?
Allow: /member/profile.htm?memberId=
Disallow: /tw/*/
Disallow: /chanpin/*?*
Disallow: /gongsi/*?*
Disallow: /qiye/*?*
Disallow: /similar/*?*
Disallow: /store/*?*
Disallow: /new/*?*
Disallow: /jiage/*?*
Disallow: /pic/*?*
Disallow: /yijiandaifa/*?*
Disallow: /*?*
Disallow: /chanpin/-*-0*.html
Disallow: /chanpin/-*-1*.html
Disallow: /chanpin/-*-2*.html
Disallow: /chanpin/-*-3*.html
Disallow: /chanpin/-*-4*.html
Disallow: /chanpin/-*-5*.html
Disallow: /chanpin/-*-6*.html
Disallow: /chanpin/-*-7*.html
Disallow: /chanpin/-*-8*.html
Disallow: /chanpin/-*-9*.html
Disallow: /gongsi/-*-0*.html
Disallow: /gongsi/-*-1*.html
Disallow: /gongsi/-*-2*.html
Disallow: /gongsi/-*-3*.html
Disallow: /gongsi/-*-4*.html
Disallow: /gongsi/-*-5*.html
Disallow: /gongsi/-*-6*.html
Disallow: /gongsi/-*-7*.html
Disallow: /gongsi/-*-8*.html
Disallow: /gongsi/-*-9*.html
Disallow: /?
Disallow: /*?tracelog=
Disallow: /offerdetail/view_large_pics_*.html
Disallow: /company/offerlist/
Disallow: /company/*?
Disallow: /company/turbine/
Disallow: /company/post_company.htm
Disallow: /company/my_company.htm
Disallow: /company/company_contact.htm
Disallow: /company/company_intro_detail.htm
Disallow: /company/buyer/
Disallow: /buyer/turbine/
Disallow: /member/
Disallow: /member/ajax/
Disallow: /seller/
Disallow: /offer/
Disallow: /catalog/
Disallow: /athena/
Disallow: /alitalk/
Disallow: /album/
Disallow: /ali/news/
Disallow: /bin/
Disallow: /myalibaba/
Disallow: /work/
Disallow: /loan/
Disallow: /product/
Disallow: /ims/
Disallow: /community/
Disallow: /message/
Disallow: /others/
Disallow: /bizexpress/
Disallow: /domain/
Disallow: /misc/
Disallow: /flash/
Disallow: /index1.html
Disallow: /message
Disallow: /taoshihui/
Disallow: /pifa/

User-agent: Baiduspider
Allow: /aiseo-sitemap/
Allow: /wiki/?
Allow: /chanpin/index.html?
Allow: /chanpin/--*.html
Allow: /topic/index.html?
Allow: /member/profile.htm?memberId=
Allow: /bidding/
Allow: /enterprise/
Allow: /chandi/
Allow: /hotbid/
Disallow: /ask/*
Disallow: /*?*
Disallow: /tw/*/
Disallow: /chanpin/*?
Disallow: /gongsi/*?
Disallow: /qiye/*?
Disallow: /similar/*?
Disallow: /chanpin/-*-0*.html
Disallow: /chanpin/-*-1*.html
Disallow: /chanpin/-*-2*.html
Disallow: /chanpin/-*-3*.html
Disallow: /chanpin/-*-4*.html
Disallow: /chanpin/-*-5*.html
Disallow: /chanpin/-*-6*.html
Disallow: /chanpin/-*-7*.html
Disallow: /chanpin/-*-8*.html
Disallow: /chanpin/-*-9*.html
Disallow: /gongsi/-*-0*.html
Disallow: /gongsi/-*-1*.html
Disallow: /gongsi/-*-2*.html
Disallow: /gongsi/-*-3*.html
Disallow: /gongsi/-*-4*.html
Disallow: /gongsi/-*-5*.html
Disallow: /gongsi/-*-6*.html
Disallow: /gongsi/-*-7*.html
Disallow: /gongsi/-*-8*.html
Disallow: /gongsi/-*-9*.html
Disallow: /?
Disallow: /*?tracelog=
Disallow: /offerdetail/view_large_pics_*.html
Disallow: /company/offerlist/
Disallow: /company/*?
Disallow: /company/turbine/
Disallow: /company/post_company.htm
Disallow: /company/my_company.htm
Disallow: /company/company_contact.htm
Disallow: /company/company_intro_detail.htm
Disallow: /company/buyer/
Disallow: /buyer/turbine/
Disallow: /member/
Disallow: /member/ajax/
Disallow: /seller/
Disallow: /offer/
Disallow: /catalog/
Disallow: /athena/
Disallow: /alitalk/
Disallow: /album/
Disallow: /ali/news/
Disallow: /bin/
Disallow: /myalibaba/
Disallow: /work/
Disallow: /loan/
Disallow: /product/
Disallow: /ims/
Disallow: /community/
Disallow: /message/
Disallow: /others/
Disallow: /bizexpress/
Disallow: /domain/
Disallow: /misc/
Disallow: /flash/
Disallow: /index1.html
Disallow: /message
Disallow: /taoshihui/
Disallow: /qingqu/*
Disallow: /video/*
Disallow: /top/*

User-agent: Googlebot
Allow: /aiseo-sitemap/
Allow: /wiki/?
Disallow: /
Allow: /xunjia/
Allow: /seorush-sitemap/
Allow: /baojia/
Allow: /howmuch/
Allow: /pingjia/
Allow: /dingzhi/
Allow: /jiagong/
Allow: /changhuo/
Allow: /yangpin/
Allow: /gongchang/
Allow: /changjia/
Allow: /bangdan/
Allow: /factory/
Allow: /bidding/
Allow: /enterprise/
Allow: /chandi/
Allow: /hotbid/

User-agent: bingbot
Allow: /aiseo-sitemap/
Allow: /wiki/?
Allow: /xunjia/
Allow: /seorush-sitemap/
Allow: /baojia/
Allow: /howmuch/
Allow: /pingjia/
Allow: /dingzhi/
Allow: /jiagong/
Allow: /changhuo/
Allow: /yangpin/
Allow: /gongchang/
Allow: /changjia/
Allow: /bangdan/
Allow: /factory/

User-agent: MSNBot
Allow: /aiseo-sitemap/
Allow: /wiki/?
Allow: /chanpin/index.html?
Allow: /chanpin/--*.html
Allow: /topic/index.html?
Allow: /member/profile.htm?memberId=
Allow: /tw/*/
Allow: /xunjia/
Allow: /seorush-sitemap/
Allow: /baojia/
Allow: /howmuch/
Allow: /pingjia/
Allow: /dingzhi/
Allow: /jiagong/
Allow: /changhuo/
Allow: /yangpin/
Allow: /gongchang/
Allow: /changjia/
Allow: /bangdan/
Allow: /factory/
Allow: /bidding/
Allow: /enterprise/
Allow: /chandi/
Allow: /hotbid/
Disallow: /chanpin/*.html
Disallow: /gongsi/*.html
Disallow: /qiye/*?
Disallow: /similar/*?
Disallow: /qiye/
Disallow: /cluster/
Disallow: /zhuanti/
Disallow: /2yuandian/
Disallow: /?
Disallow: /*?tracelog=
Disallow: /offerdetail/view_large_pics_*.html
Disallow: /company/offerlist/
Disallow: /company/*?
Disallow: /company/turbine/
Disallow: /company/post_company.htm
Disallow: /company/my_company.htm
Disallow: /company/company_contact.htm
Disallow: /company/company_intro_detail.htm
Disallow: /company/buyer/
Disallow: /buyer/turbine/
Disallow: /member/
Disallow: /member/ajax/
Disallow: /seller/
Disallow: /offer/
Disallow: /catalog/
Disallow: /athena/
Disallow: /alitalk/
Disallow: /album/
Disallow: /ali/news/
Disallow: /bin/
Disallow: /myalibaba/
Disallow: /work/
Disallow: /loan/
Disallow: /product/
Disallow: /ims/
Disallow: /community/
Disallow: /message/
Disallow: /others/
Disallow: /bizexpress/
Disallow: /domain/
Disallow: /misc/
Disallow: /flash/
Disallow: /index1.html
Disallow: /message
Disallow: /taoshihui/
Disallow: /chanpin/-*-0*.html
Disallow: /chanpin/-*-1*.html
Disallow: /chanpin/-*-2*.html
Disallow: /chanpin/-*-3*.html
Disallow: /chanpin/-*-4*.html
Disallow: /chanpin/-*-5*.html
Disallow: /chanpin/-*-6*.html
Disallow: /chanpin/-*-7*.html
Disallow: /chanpin/-*-8*.html
Disallow: /chanpin/-*-9*.html

User-agent: 360Spider
Allow: /aiseo-sitemap/
Allow: /wiki/?
Allow: /chanpin/index.html?
Allow: /chanpin/--*.html
Allow: /topic/index.html?
Allow: /member/profile.htm?memberId=
Allow: /tw/*/
Allow: /bidding/
Allow: /enterprise/
Allow: /chandi/
Allow: /hotbid/
Disallow: /*?*
Disallow: /chanpin/*?
Disallow: /gongsi/*?
Disallow: /qiye/*?
Disallow: /similar/*?
Disallow: /chanpin/-*-0*.html
Disallow: /chanpin/-*-1*.html
Disallow: /chanpin/-*-2*.html
Disallow: /chanpin/-*-3*.html
Disallow: /chanpin/-*-4*.html
Disallow: /chanpin/-*-5*.html
Disallow: /chanpin/-*-6*.html
Disallow: /chanpin/-*-7*.html
Disallow: /chanpin/-*-8*.html
Disallow: /chanpin/-*-9*.html
Disallow: /gongsi/-*-0*.html
Disallow: /gongsi/-*-1*.html
Disallow: /gongsi/-*-2*.html
Disallow: /gongsi/-*-3*.html
Disallow: /gongsi/-*-4*.html
Disallow: /gongsi/-*-5*.html
Disallow: /gongsi/-*-6*.html
Disallow: /gongsi/-*-7*.html
Disallow: /gongsi/-*-8*.html
Disallow: /gongsi/-*-9*.html
Disallow: /?
Disallow: /*?tracelog=
Disallow: /offerdetail/view_large_pics_*.html
Disallow: /company/offerlist/
Disallow: /company/*?
Disallow: /company/turbine/
Disallow: /company/post_company.htm
Disallow: /company/my_company.htm
Disallow: /company/company_contact.htm
Disallow: /company/company_intro_detail.htm
Disallow: /company/buyer/
Disallow: /buyer/turbine/
Disallow: /member/
Disallow: /member/ajax/
Disallow: /seller/
Disallow: /offer/
Disallow: /catalog/
Disallow: /athena/
Disallow: /alitalk/
Disallow: /album/
Disallow: /ali/news/
Disallow: /bin/
Disallow: /myalibaba/
Disallow: /work/
Disallow: /loan/
Disallow: /product/
Disallow: /ims/
Disallow: /community/
Disallow: /message/
Disallow: /others/
Disallow: /bizexpress/
Disallow: /domain/
Disallow: /misc/
Disallow: /flash/
Disallow: /index1.html
Disallow: /message
Disallow: /taoshihui/

sitemap.xml 200 OK

Type URL Set URLs 0 entries Valid XML No

URL Variants

Action

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→HTTPS redirect uses 302 instead of 301

Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

200https://www.1688.com/

200https://1688.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

302http://1688.com/ → https://www.1688.com/

Use 301 (permanent) instead of 302 (temporary)

HTTP Probe Timing

Total 974 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

REVIEW

DNS Lookup

71 ms

TCP Connect

225 ms

TLS Handshake

453 ms

Time to First Byte

975 ms

Total Time

975 ms

Connection waterfall

DNS Lookup 71 ms TCP Connect 225 ms TLS Handshake 453 ms Server Processing 226 ms Content Transfer 0 ms

TLS Certificate Expiry & Recommendations

165 days until leaf cert expires — 4 issues to address

REVIEW

Certificate validity

165

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, 76 ms lookup

PASS

1 A records, 76 ms lookup

Resolves to 1 IPv4 address(es)

Got: 140.205.174.2

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

No IPv6 (AAAA) records

2 nameserver(s) configured

Got: ns2.alibabadns.com, ns1.alibabadns.com

No MX records — email not configured via DNS

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: 76 ms

Got: 76 ms

A	140.205.174.2
AAAA	—
CNAME	—
NS	ns2.alibabadns.com, ns1.alibabadns.com
MX	—
TXT	_globalsign-domain-verification=u2-LeKHTkIrYoM6JPuj4edRSeiLrwo7mUoI2cFkwFk SPF v=spf1 include:spf1.staff.mail.aliyun.com -all google-site-verification=rtgxeaCuh5y9xwYYDVECVoCARYDDJX9TZCQxNd_ZhqM v3ncg52dhch02fxfkdsqx1s0qwd3ztgz google-site-verification=qyU5nzO1C_vWRaw_mF7Vn8P38_UqUfcY2litTfk1ySg
CAA	Lookup not available with standard resolver

Resolved in 76 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+

Domain Intelligence

1688.com — via Alibaba Cloud Computing (Beijing) Co., Ltd., 29 years, 11 months old, hosted on Alibaba Cloud

PASS

1688.com — via Alibaba Cloud Computing (Beijing) Co., Ltd., 29 years, 11 months old, hosted on Alibaba Cloud

Domain registered until Oct 17, 2030 (4 years, 6 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: Alibaba Cloud Computing (Beijing) Co., Ltd.

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: Alibaba Cloud

Got: AS37963

Domain expiry

1584 days

October 17, 2030

SSL certificate

165 days

Issued by GlobalSign nv-sa

Domain age

29 years, 11 months

Registered October 18, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Alibaba Cloud

ASN AS37963

140.205.174.2

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

Unlocked 2 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 Alibaba Cloud Computing (Beijing) Co., Ltd.

Created October 18, 1996 (29 years, 11 months ago)

Expires October 17, 2030 (4 years, 6 months)

Last Updated December 5, 2025

Name Servers ns1.alibabadns.com, ns2.alibabadns.com

DNSSEC Not enabled

Hosting

IP Address 140.205.174.2

ASN AS37963 (ALIBABA-CN-NET Hangzhou Alibaba Advertising Co.,Ltd., CN)

Provider Alibaba Cloud

Data source: rdap (0.8s)

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

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