Webmaster Tools

Website speed, Ping, DNS, SEO crawling and security checks in one place.

51 tools online9 test categories

PERFORMANCE & SPEED

Website speed and performance

See response, latency and IPv6 access performance from distributed probes.

Website speed testMeasure DNS, connection, download and total response time
Ping testCompare latency and packet loss across regions
TCPing testCheck TCP port connectivity and connection time
IPv6 website testCheck AAAA resolution and IPv6 access speed
PageSpeed analysisReview performance, SEO, accessibility and core metrics

DNS & DOMAIN

DNS and domain information

Check DNS records, registration details and regional resolution differences.

DNS lookupView records, IP addresses and response time from multiple probes
Whois lookupFind registrar, expiry date and nameservers
DNS pollution testIdentify poisoned answers and regional differences
Domain hijack testCompare DNS, HTTP responses and unexpected redirects

SEO CRAWLING

SEO crawling and indexing

Check whether search engines can crawl, understand and index your pages.

Robots.txt checkerValidate crawl rules and blocked paths
Sitemap.xml checkerCheck sitemap address, format and URL status
HTTP status checkerIdentify 200, 301, 302, 404 and other responses
Canonical and hreflang checkerValidate canonical URLs and language relationships
Meta, Open Graph and Twitter CardPreview search and social sharing metadata
Schema validatorValidate JSON-LD and rich result fields
Broken link checkerFind 404, 5xx, restricted and unreachable links
Page SEO checkerReview indexability, metadata, links and technical signals
Page indexability checkerCheck status, robots, noindex and canonical conflicts
H1-H6 heading checkerAudit heading hierarchy, missing H1s and duplicate text
Image SEO and Alt checkerAudit image alternatives, dimensions and lazy loading
Internal and external link analyzerReview anchor text, attributes and target types

EMAIL AUTHENTICATION

Email delivery and domain authentication

Review sender authentication, transport security and delivery basics.

MX, SPF, DKIM and DMARCCheck the core DNS configuration for email delivery
BIMI checkerCheck brand logo records and DMARC prerequisites
MTA-STS and TLS-RPT checkerValidate email transport policy and reporting
DMARC record generatorCreate a DMARC policy record for deployment
SPF record generatorCombine senders while controlling DNS lookups

SEO GENERATORS

SEO generators and marketing tools

Create common SEO metadata, structured data and deployment rules.

XML Sitemap generatorCrawl a site and create a canonical sitemap
robots.txt generatorCreate crawl rules for a site's needs
Meta and SERP preview generatorCreate search and social sharing metadata
Schema JSON-LD generatorCreate common structured data types
SEO URL and pinyin slug generatorTurn titles into short readable URL paths

WEB TECHNOLOGY

Web technology and protocols

Review caching, compression, protocol support and resource settings.

Cache-Control checkerAnalyze browser and CDN cache policy
Gzip and Brotli checkerReview text compression and transfer size
HTTP/2 and HTTP/3 checkerVerify modern protocol negotiation
CDN checkerIdentify CDN signals from DNS and headers
CORS checkerReview cross-origin headers, preflight requests and credential policy
Technology stack detectorIdentify servers, frameworks, CMS and components

SECURITY & REPUTATION

Website security and reputation

Check domain access, platform warnings and core security configuration.

China block testCompare access from mainland China and overseas
QQ block testCheck link risk signals in QQ environments
WeChat block testCheck link warnings in WeChat environments
SSL/TLS certificate checkerReview certificate chain, expiry and protocol settings
Blacklist checkerCheck domain or IP reputation database signals
Security headers checkerReview CSP, HSTS and anti-embedding security controls

NETWORK DIAGNOSTICS

Network paths and regional access

Find routing issues, regional failures and node reachability problems.

TracerouteView network hops and paths from distributed probes
IPv6 tracerouteAnalyze IPv6 paths and intermediate nodes
FindPing node discoveryFind connectivity differences across more probes
Overseas access testCompare availability and speed from overseas probes

OPERATIONS

Batch testing and operations

Batch and continuous checks for site owners, developers and operations teams.

Batch testingRun batch Ping, TCPing and HTTP tests
Website monitoringTrack availability, response time and incidents
WebSocket testCheck WebSocket handshakes and long connections
Local network testInspect the browser's network environment