:root{--ink:#152540;--muted:#63718a;--blue:#136cdd;--teal:#0c9c84;--line:#e3e9f1;--soft:#f5f8fc;--white:#fff;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,"Segoe UI",Arial,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #7cb3fc;outline-offset:4px}input:focus,select:focus{outline:2px solid #7cb3fc;outline-offset:2px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.18;letter-spacing:-.035em}p{color:var(--muted)}.container{width:min(1140px,calc(100% - 64px));margin-inline:auto}.icon{width:23px;height:23px;flex-shrink:0;vertical-align:middle}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.skip-link{position:fixed;top:10px;left:10px;transform:translateY(-160%);z-index:10;padding:10px 18px;border-radius:8px;color:white;background:var(--ink)}.skip-link:focus{transform:none}
.site-header{border-bottom:1px solid #e9edf4;background:#fff}.header-inner{height:88px;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:25px;font-weight:750;letter-spacing:-1.3px;color:#172942;white-space:nowrap}.brand>span:last-child{color:#1673da;margin-left:-10px}.brand-mark{display:grid;place-items:center;background:var(--blue);color:white;width:36px;height:36px;border-radius:11px;box-shadow:0 5px 10px #136cdd18}.brand-mark .icon{width:26px;height:26px}.nav{display:flex;gap:33px;margin-left:auto;align-items:center;font-weight:550;font-size:14px}.nav a:hover,.footer-links a:hover{color:var(--blue)}.header-cta{display:flex;align-items:center;gap:14px;margin-left:20px;padding:11px 17px;border:1px solid #dce5f1;border-radius:9px;font-weight:650;font-size:13px}.header-cta .icon{width:17px;height:17px}.header-cta:hover{border-color:var(--blue);color:var(--blue)}
.hero{padding:62px 0 54px;background:linear-gradient(145deg,#f7faff 0%,#fbfcff 68%,#f4fbfa 100%);border-bottom:1px solid #e6edf4}.hero-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:center;margin-bottom:43px}.eyebrow{display:flex;align-items:center;gap:10px;font-size:10px;font-weight:750;letter-spacing:1.8px;color:#56708d;margin-bottom:18px}.eyebrow-dot{display:inline-block;width:6px;height:6px;background:#13a68b;box-shadow:0 0 0 4px #0c9c8410;border-radius:100%}h1{font-size:clamp(38px,4.1vw,58px);font-weight:730;letter-spacing:-2.4px;line-height:1.12}h1 span{color:var(--blue)}.hero-description{margin-top:22px;font-size:16px;line-height:1.8;max-width:600px}.hero-perks{display:flex;gap:24px;margin-top:22px;color:#53657d;font-size:12px}.hero-perks span{display:flex;align-items:center;gap:6px}.hero-perks .icon{width:15px;height:15px;color:var(--teal)}.network-art{height:290px;position:relative;isolation:isolate;margin-top:-8px}.orbit{position:absolute;border:1px dashed #cbdced;border-radius:50%;inset:30px 66px;z-index:-2}.orbit-two{inset:0 28px;border-color:#dae7f0;transform:rotate(-18deg)}.network-art:before{content:"";position:absolute;inset:32px 90px;background:#dce9ff;border-radius:50%;filter:blur(45px);z-index:-1}.network-lines{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.network-lines path{stroke:#bbd2e9;stroke-width:1.5;stroke-dasharray:5 5;fill:none}.network-center{position:absolute;left:50%;top:49%;transform:translate(-50%,-50%);display:flex;align-items:center;flex-direction:column;background:#fff;border:1px solid #dce7f3;border-radius:22px;padding:24px 20px 20px;min-width:166px;box-shadow:0 18px 35px #2e63a915}.network-center>.icon{width:42px;height:42px;color:var(--blue);margin-bottom:12px}.network-center strong{font-size:14px;font-weight:700}.network-center span{font-size:10px;color:var(--muted);margin-top:2px}.network-node{position:absolute;display:flex;align-items:center;gap:9px;padding:12px 14px;border-radius:13px;background:#fff;border:1px solid #e0e9f4;box-shadow:0 5px 18px #1c417309;font-size:10px;font-weight:750;letter-spacing:.6px}.network-node .icon{width:20px;height:20px}.node-dns{left:4%;top:16%;color:#7761c3;transform:rotate(-4deg)}.node-ssl{right:2%;top:9%;color:var(--teal);transform:rotate(4deg)}.node-http{right:0;bottom:16%;color:#3276d0;transform:rotate(-3deg)}.node-mail{left:6%;bottom:12%;color:#bc648f;transform:rotate(4deg)}.art-caption{position:absolute;bottom:-11px;left:0;right:0;text-align:center;font-size:10px;letter-spacing:.3px;color:#72859d}.checker-card{background:#fff;border:1px solid #dce5f1;border-radius:var(--radius);padding:27px 30px 22px;box-shadow:0 12px 40px #1c447a08}.checker-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:21px;gap:14px}.checker-title{display:flex;align-items:center;gap:13px}.checker-title h2{font-size:18px;font-weight:700;letter-spacing:-.35px}.checker-title p{font-size:12px;margin-top:4px}.small-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center}.blue{background:#eaf3ff;color:#2677d6}.purple{background:#f1edff;color:#8565c4}.teal{background:#e7f8f2;color:#0e987e}.orange{background:#fff2e5;color:#d48a3d}.pink{background:#fcecf4;color:#c36c98}.indigo{background:#eef0ff;color:#6678cc}.live-label{display:flex;align-items:center;gap:6px;font-size:9px;font-weight:750;letter-spacing:1px;color:#8492a4}.live-label>span{height:5px;width:5px;border-radius:50%;background:#83aab0}.input-row{display:flex;align-items:stretch;gap:12px}.target-wrap{position:relative;flex:1;min-width:0}.target-wrap>.icon{position:absolute;left:18px;top:17px;color:#97a6ba;width:21px;height:21px}.target-wrap input{width:100%;height:56px;padding:12px 18px 12px 51px;color:var(--ink);background:#fbfcfe;border:1px solid #dbe3ee;border-radius:10px;font-size:15px}.target-wrap input::placeholder{color:#97a4b6}.input-row select{padding:0 14px;border:1px solid #dbe3ee;border-radius:10px;background:#fbfcfe;color:#53657d;max-width:190px;font-size:13px}.primary-button{border:0;border-radius:10px;display:flex;align-items:center;justify-content:center;gap:17px;background:var(--blue);color:#fff;padding:15px 24px;font-size:13px;font-weight:650;white-space:nowrap;min-height:56px;box-shadow:0 4px 12px #136cdd15;transition:background .15s}.primary-button:hover{background:#0a5dc4}.primary-button:disabled{background:#557daf}.primary-button .icon{height:17px;width:17px}.input-hint{font-size:11px;margin-top:12px;display:flex;align-items:center;gap:8px;color:#8492a4}.example-button{border:0;padding:0;background:none;font-size:11px;color:#527dae;text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px}.spinner{height:17px;width:17px;border:2px solid #ffffff60;border-top-color:white;border-radius:50%;animation:spin .8s linear infinite}.request-status:not(:empty){padding-top:13px;font-size:12px;color:#527dae}.request-status.error{color:#a83b48}.ip-intro{display:flex;align-items:center;gap:20px}.ip-intro>.icon{color:var(--blue);width:32px;height:32px}.ip-intro p{flex:1;font-size:13px;max-width:630px}.back-link{font-size:12px;display:inline-block;color:#75879e;margin-bottom:25px}.back-link:hover{color:var(--blue)}.hero-tool{padding-top:32px}.hero-tool .hero-grid{display:block;margin-bottom:30px}.hero-tool .hero-description{max-width:680px}.hero-tool h1{font-size:48px}.hero-tool .hero-perks{margin-top:17px}
.tools-section{padding-block:65px}.section-header{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:30px}.section-header .eyebrow{margin-bottom:12px}.section-header h2{font-size:30px;letter-spacing:-1px;font-weight:700}.section-header>p{font-size:12px;line-height:1.8;max-width:290px}.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.tool-card{position:relative;display:flex;flex-direction:column;padding:25px 25px 22px;border:1px solid var(--line);border-radius:15px;transition:box-shadow .18s,border-color .18s,transform .18s}.tool-card:hover{border-color:#aac9ee;transform:translateY(-3px);box-shadow:0 10px 22px #244e8010}.card-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:21px}.card-icon .icon{width:25px;height:25px}.card-category{position:absolute;top:34px;right:24px;font-size:8px;letter-spacing:.9px;font-weight:700;color:#8a98ab}.tool-card h3{font-size:17px;letter-spacing:-.3px}.tool-card p{font-size:12px;line-height:1.8;margin-top:10px;margin-bottom:21px;max-width:270px}.card-link{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:11px;font-weight:650;color:#5b7391;padding-top:16px;border-top:1px solid #edf1f6}.card-link .icon{width:16px;height:16px}.tool-card:hover .card-link{color:var(--blue)}.how-section{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;padding:41px 45px;background:#f4f8fc;border:1px solid #e7edf5;border-radius:20px;margin-bottom:67px}.how-heading h2{font-size:30px;line-height:1.24;letter-spacing:-1px}.how-heading .eyebrow{font-size:9px;margin-bottom:14px}.how-heading>p:last-child{font-size:12px;margin-top:15px}.steps{display:flex;flex-direction:column;gap:25px}.step{display:flex;gap:20px;align-items:start}.step>span{display:grid;place-items:center;font-size:11px;color:#6c8fb9;letter-spacing:.5px;background:#fff;border:1px solid #dde7f4;border-radius:10px;width:37px;height:37px;flex-shrink:0}.step h3{font-size:15px;letter-spacing:-.2px;margin-top:2px}.step p{font-size:12px;margin-top:7px;max-width:360px}.faq-section{padding-bottom:70px}.faq-section h2{font-size:27px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:38px;row-gap:4px}.faq-grid details{border-bottom:1px solid #e5ebf3;padding:19px 0;align-self:start}.faq-grid summary{list-style:none;display:flex;justify-content:space-between;gap:15px;cursor:pointer;font-size:13px;font-weight:650;line-height:1.6}.faq-grid summary::-webkit-details-marker{display:none}.faq-grid summary span{font-size:18px;font-weight:400;color:#96a4b8;line-height:1.2}.faq-grid details[open] summary span{transform:rotate(45deg)}.faq-grid details p{font-size:12px;margin-top:15px;line-height:1.8;max-width:490px}.site-footer{border-top:1px solid #e7ecf3;background:#fbfcfe}.footer-top{display:flex;justify-content:space-between;gap:30px;align-items:center;padding-block:35px}.footer-top .brand{font-size:21px}.footer-top .brand-mark{width:29px;height:29px;border-radius:9px}.footer-top .brand-mark .icon{width:21px;height:21px}.footer-top p{margin-top:11px;font-size:11px;color:#8996a9}.footer-links{display:flex;gap:27px;font-size:11px;color:#687c98}.footer-bottom{display:flex;justify-content:space-between;padding-block:18px;border-top:1px solid #e8edf5;font-size:10px;color:#95a0b1}
.results{margin-top:24px;padding:26px 30px;background:white;border:1px solid var(--line);border-radius:var(--radius);outline:none}.result-heading{display:flex;gap:14px;align-items:start}.result-symbol{border-radius:50%;width:36px;height:36px;display:grid;place-items:center;background:#fff4e1;color:#a27018;font-size:17px;flex-shrink:0}.result-symbol.online{background:#e5f8ee;color:#15956d}.result-symbol.unreachable{background:#fcecf0;color:#b64760}.result-symbol.restricted{background:#edf3ff;color:#5480c5}.result-heading h2{font-size:20px;letter-spacing:-.4px;margin-bottom:7px}.result-heading p{font-size:13px}.result-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px;padding-bottom:17px;border-bottom:1px solid #e8edf5;font-size:11px;color:#8b99ac}.result-target{font-family:Consolas,"Courier New",monospace;font-size:12px;overflow-wrap:anywhere;color:#536d92;max-width:100%}.metrics-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:20px}.metric{padding:17px;border:1px solid #e5ebf3;border-radius:11px;min-width:0;background:#fbfcfe}.metric>span{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.8px;color:#8b99ac}.metric>strong{display:block;font-size:20px;letter-spacing:-.5px;overflow-wrap:anywhere;font-weight:650;line-height:1.4;margin-top:7px}.metric>strong.small-value{font-size:13px;letter-spacing:0}.metric>p{font-size:10px;margin-top:4px}.detail-list{margin:20px 0 0;display:grid;gap:0}.detail-row{display:grid;grid-template-columns:160px 1fr;gap:18px;border-bottom:1px solid #edf1f6;padding:12px 0;font-size:12px}.detail-row dt{color:#8190a6}.detail-row dd{margin:0;color:#405977;overflow-wrap:anywhere}.result-note,.notice{background:#f5f8fc;border-radius:10px;padding:13px 16px;font-size:11px;color:#788ca6;margin-top:20px;line-height:1.8}.result-warning{background:#fff7e7;color:#966c28;border:1px solid #f5e5c5;margin-top:18px;border-radius:10px;padding:12px 16px;font-size:12px}.table-scroll{overflow-x:auto;margin-top:20px}table{border-collapse:collapse;width:100%;min-width:580px;text-align:left;font-size:12px}th{font-size:10px;text-transform:uppercase;letter-spacing:.7px;color:#8596ad;background:#f6f9fd;font-weight:600}th,td{padding:12px;border-bottom:1px solid #e6edf5;vertical-align:top}td{color:#4b6280;overflow-wrap:anywhere}td.dns-value{font-family:Consolas,"Courier New",monospace;font-size:11px;max-width:560px;min-width:220px}.type-badge{white-space:nowrap;display:inline-block;border-radius:5px;background:#eaf2ff;color:#487cac;font-size:9px;font-weight:650;padding:4px 7px}.trace{margin-top:22px;display:grid;gap:10px}.trace-step{display:flex;gap:15px;align-items:start;border:1px solid #e2eaf4;border-radius:10px;padding:14px}.trace-number{border-radius:8px;background:#eef4fd;font-size:10px;padding:5px 9px;color:#6d8fbc}.trace-content{flex:1;min-width:0}.trace-url{font-family:Consolas,"Courier New",monospace;font-size:12px;overflow-wrap:anywhere;color:#415d84}.trace-detail{margin-top:4px;font-size:10px;color:#8b9bb0}.trace-code{background:#edf6f1;color:#46896b;padding:4px 7px;font-size:10px;font-weight:650;border-radius:5px;white-space:nowrap}.email-checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}.email-check{padding:17px;border:1px solid #e3eaf4;border-radius:11px;min-width:0}.email-check strong{font-size:13px;display:flex;align-items:center;gap:8px}.email-check strong:before{content:"";height:6px;width:6px;border-radius:50%;background:#c99a3e}.email-check.online strong:before{background:#18a57d}.email-check p{font-size:11px;margin-top:9px;line-height:1.7}.record-block{margin-top:20px}.record-block h3{font-size:13px;letter-spacing:0;margin-bottom:10px}.record-block pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:13px 16px;border-radius:10px;border:1px solid #e7edf5;background:#fbfcfe;color:#58708f;font-size:11px;line-height:1.8;margin:8px 0;font-family:Consolas,"Courier New",monospace}.ip-display{display:flex;align-items:center;gap:15px;margin-top:20px;padding:22px;background:#f4f8fe;border-radius:12px;flex-wrap:wrap}.ip-display strong{font-family:Consolas,"Courier New",monospace;font-size:25px;overflow-wrap:anywhere;max-width:100%;color:#2c5d9d}.copy-button{border:1px solid #d7e4f5;background:#fff;color:#527da8;font-size:11px;padding:8px 13px;border-radius:8px;margin-left:auto}.document-page{padding-block:50px 80px;max-width:900px}.document-page h1{font-size:42px;margin-bottom:35px;letter-spacing:-1.5px}.document-page .eyebrow{margin-top:10px}.document-content .lead{font-size:18px;margin-bottom:28px}.document-content h2{font-size:20px;letter-spacing:-.4px;margin-top:28px;margin-bottom:12px}.document-content p{font-size:14px;line-height:1.9}.document-content a{color:var(--blue);text-decoration:underline}
@keyframes spin{to{transform:rotate(360deg)}}
@media(min-width:1400px){.hero{padding-top:75px;padding-bottom:63px}.hero-grid{margin-bottom:47px}.tools-section{padding-top:74px}}
@media(max-width:1000px){.header-inner{gap:20px}.nav{gap:20px}.header-cta{margin-left:0;padding-inline:12px}.hero-grid{grid-template-columns:1.3fr 1fr;gap:10px}h1{font-size:46px}.network-center{min-width:150px;padding-inline:12px}.network-node{padding:10px;font-size:9px;gap:6px}.network-art{height:265px}.card-category{position:static;margin-top:-9px;margin-bottom:12px;font-size:7px}.tool-card{padding:23px 21px 20px}.how-section{padding:35px;gap:35px}.hero-perks{gap:16px}.hero-description{font-size:15px}}
@media(max-width:760px){.container{width:calc(100% - 40px)}.header-inner{height:73px;gap:15px}.brand{font-size:22px}.brand-mark{width:32px;height:32px;border-radius:10px}.nav{gap:18px;font-size:12px}.nav>a:nth-child(2){display:none}.header-cta{display:none}.hero{padding:40px 0}.hero-grid{grid-template-columns:1fr;margin-bottom:28px}.hero-copy h1{font-size:45px;letter-spacing:-1.8px}.hero-description{font-size:14px;margin-top:18px}.hero-perks{margin-top:19px;font-size:11px}.network-art{display:none}.checker-card{padding:22px 21px 18px;border-radius:15px}.checker-top{margin-bottom:18px}.checker-title h2{font-size:16px}.checker-title p{font-size:10px}.live-label{display:none}.small-icon{width:36px;height:36px;border-radius:10px}.small-icon .icon{width:21px;height:21px}.input-row{flex-wrap:wrap;gap:10px}.target-wrap{flex-basis:100%}.target-wrap input{font-size:14px;height:54px}.primary-button{padding:14px 20px;min-height:50px;flex:1}.input-row select{max-width:none;width:100%;flex-basis:100%;height:48px;font-size:12px}.input-hint{font-size:9px;gap:6px;flex-wrap:wrap}.example-button{font-size:10px}.tools-section{padding-block:44px}.section-header{margin-bottom:23px;align-items:start}.section-header h2{font-size:25px}.section-header>p{display:none}.eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:15px}.tools-grid{grid-template-columns:repeat(2,1fr);gap:12px}.tool-card{padding:20px 18px 17px;border-radius:13px}.card-icon{width:38px;height:38px;border-radius:10px;margin-bottom:21px}.card-category{font-size:7px;letter-spacing:.5px}.tool-card h3{font-size:15px}.tool-card p{font-size:11px;line-height:1.75;margin-top:9px;margin-bottom:16px}.card-link{font-size:10px;padding-top:13px}.how-section{grid-template-columns:1fr;padding:29px 25px;gap:26px;margin-bottom:43px}.how-heading h2{font-size:27px}.how-heading h2 br{display:none}.how-heading>p:last-child{display:none}.how-heading .eyebrow{font-size:8px}.steps{gap:22px}.step p{max-width:none;font-size:11px}.faq-grid{grid-template-columns:1fr}.faq-section{padding-bottom:45px}.faq-section h2{font-size:25px}.faq-grid summary{font-size:12px}.faq-grid details{padding:18px 0}.footer-top{align-items:start;flex-direction:column;gap:23px;padding-block:27px}.footer-links{gap:22px;font-size:10px}.footer-bottom{font-size:9px;padding-block:16px}.hero-tool{padding-top:26px}.hero-tool h1{font-size:39px}.hero-tool .hero-grid{margin-bottom:26px}.back-link{margin-bottom:20px}.results{padding:22px 20px;border-radius:15px}.result-heading h2{font-size:18px}.result-heading p{font-size:12px}.result-symbol{width:30px;height:30px;font-size:14px}.result-meta{font-size:10px;gap:8px}.result-target{font-size:11px}.metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.metric{padding:13px}.metric>span{font-size:8px;letter-spacing:.6px}.metric>strong{font-size:18px}.metric>strong.small-value{font-size:12px}.detail-row{grid-template-columns:105px 1fr;font-size:11px;gap:10px}.email-checks{grid-template-columns:1fr;gap:10px}.email-check{padding:14px}.trace-step{padding:12px;gap:10px}.trace-url{font-size:11px}.trace-number{padding:4px 7px}.ip-intro{flex-wrap:wrap;gap:12px}.ip-intro p{font-size:11px}.ip-intro .primary-button{flex-basis:100%}.ip-display{padding:17px}.ip-display strong{font-size:20px}.ip-display .copy-button{margin-left:0}.document-page{padding-top:30px;padding-bottom:45px}.document-page h1{font-size:34px;letter-spacing:-1px}.document-content p{font-size:13px}}
@media(max-width:380px){.container{width:calc(100% - 30px)}.hero-copy h1{font-size:39px}.hero-perks{gap:12px;font-size:10px}.checker-card{padding:20px 17px}.live-label{display:none}.tools-grid{gap:10px}.tool-card{padding:17px 14px}.card-category{font-size:6px}.tool-card h3{font-size:14px}.tool-card p{font-size:10px}.card-link{font-size:9px}.hero-tool h1{font-size:33px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition:none!important}.tool-card:hover{transform:none}}