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Trình kiểm tra SSL - Kiểm tra online miễn phí chứng chỉ web
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onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'upwork', this, false)">UpWork</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/freelance-websites/fiverr/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'fiverr', this, false)">Fiverr</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/freelance-websites/toptal/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'toptal', this, false)">Toptal</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/freelance-websites/growtal/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'growtal', this, false)">GrowTal</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/logo-design-services/designcrowd/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'designcrowd', this, false)">DesignCrowd</a> </li> <li class="header-nav-cat-all"> <a 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class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/email-marketing-services/benchmark/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'benchmark', this, false)">Benchmark</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/email-marketing-services/sendinblue/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'sendinblue', this, false)">Sendinblue</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/email-marketing-services/aweber/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'aweber', this, false)">AWeber</a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/vi/email-marketing-services/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'View all Dịch vụ Tiếp thị qua Email', this, false)">Xem tốt nhất</a> </li> </ul> </li> </ul> </li><li class="header-nav-menu-item menu-item-has-children menu-item-vendors" tabindex="0"><span class="header-nav-menu-item-text">Phiếu giảm giá<span class="header-nav-menu-item-coupon" dir="ltr">99+</span></span> <ul class="header-nav-sub-menu coupons"> <li class="menu-item-second-level"> <a href="https://www.websiteplanet.com/vi/coupons/website-builders/" class="header-nav-cat-title newmenu_websitebuilder" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo Website', this, false)"> Trình tạo Website </a> <ul class="sub-menu" data-catid="527"> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/wix/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Wix', this, false)"> Wix<span class="countForV"> (5)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/site123/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'SITE123', this, false)"> SITE123<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/coupon/hostinger-website-builder/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Hostinger Website Builder', this, false)"> Hostinger Website Builder<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/shopify/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Shopify', this, false)"> Shopify<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/squarespace/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'SquareSpace', this, false)"> SquareSpace<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/vi/coupons/website-builders/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'View all Trình tạo Website', this, false)">Xem tốt nhất</a> </li> </ul> </li> <li class="menu-item-second-level"> <a href="https://www.websiteplanet.com/vi/coupons/web-hosting/" class="header-nav-cat-title newmenu_webhosting" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Dịch vụ Lưu trữ Web', this, false)"> Dịch vụ Lưu trữ Web </a> <ul class="sub-menu" data-catid="526"> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/hostinger/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Hostinger', this, false)"> Hostinger<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/1and1-ionos-hosting/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'IONOS', this, false)"> IONOS<span class="countForV"> (2)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/interserver/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'InterServer', this, false)"> InterServer<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/a2-hosting/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'A2 Hosting', this, false)"> A2 Hosting<span class="countForV"> (3)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/coupon/nexcess/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Nexcess', this, false)"> Nexcess<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/vi/coupons/web-hosting/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'View all Dịch vụ Lưu trữ Web', this, false)">Xem tốt nhất</a> </li> </ul> </li> <li class="menu-item-second-level"> <a href="https://www.websiteplanet.com/vi/coupons/logo-design-services/" class="header-nav-cat-title newmenu_logodesigh" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Dịch vụ Thiết kế Logo', this, false)"> Dịch vụ Thiết kế Logo </a> <ul class="sub-menu" 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class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/99designs/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', '99designs', this, false)"> 99designs<span class="countForV"> (1)</span> </a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/vi/coupons/logo-design-services/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'View all Dịch vụ Thiết kế Logo', this, false)">Xem tốt nhất</a> </li> </ul> </li> <li class="menu-item-second-level"> <a href="https://www.websiteplanet.com/vi/coupons/email-marketing-services/" class="header-nav-cat-title newmenu_emailswrvice" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Dịch vụ Tiếp thị qua Email', this, false)"> Dịch vụ Tiếp thị qua Email </a> <ul class="sub-menu" data-catid="520"> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/coupon/getresponse/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'GetResponse', this, false)"> 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</a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/vi/coupons/email-marketing-services/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'View all Dịch vụ Tiếp thị qua Email', this, false)">Xem tốt nhất</a> </li> </ul> </li> </ul> </li><li class="header-nav-menu-item menu-item-has-children menu-item-tools" tabindex="0"><span class="header-nav-menu-item-text">Công cụ</span> <ul class="header-nav-sub-menu popular"> <li class="menu-item-second-level menu-item-second-level-tools newmenu_populartools"> <a href="https://www.websiteplanet.com/vi/webtools/"> <span class="header-nav-cat-title newmenu_populartools">CÁC CÔNG CỤ PHỔ BIẾN</span> </a> <ul class="sub-menu "> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/imagecompressor/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Nén PNG/JPG', this, false)">Nén PNG/JPG</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/free-qr-code-generator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo mã QR miễn phí', this, false)">Trình tạo mã QR miễn phí</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/sharelink/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo liên kết chia sẻ', this, false)">Trình tạo liên kết chia sẻ</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/check-domain/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra hết hạn miền', this, false)">Trình kiểm tra hết hạn miền</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/down-or-not/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trang web có bị sập hay không', this, false)">Trang web có bị sập hay không</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/multiple-url/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình mở nhiều URL', this, false)">Trình mở nhiều URL</a> </li> </ul> </li> <li class="menu-see-all-tools"><a href="https://www.websiteplanet.com/vi/webtools/" class="See-All-Tools"> Xem tất cả các công cụ </a></li> </ul> <ul class="header-nav-sub-menu" id="see-all-tools" style="display:none;"> <li class="menu-item-second-level menu-item-second-level-tools"> <span class="header-nav-cat-title newmenu_webmastertools">Các công cụ Quản trị web</span> <ul class="sub-menu "> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/robots-txt/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra Robots.TXT', this, false)">Trình kiểm tra Robots.TXT</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/sitemap-validator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình xác thực Sơ đồ website XML', this, false)">Trình xác thực Sơ đồ website XML</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/favicon-generator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo biểu tượng website', this, false)">Trình tạo biểu tượng website</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/responsive-checker/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra tính đáp ứng', this, false)">Trình kiểm tra tính đáp ứng</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/ssl-checker/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra SSL', this, false)">Trình kiểm tra SSL</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/check-domain/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra hết hạn miền', this, false)">Trình kiểm tra hết hạn miền</a> </li> </ul> </li> <li class="menu-item-second-level menu-item-second-level-tools"> <span class="header-nav-cat-title newmenu_perfomancetools">Các công cụ Hiệu suất</span> <ul class="sub-menu "> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/gzip-compression/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Nén Gzip', this, false)">Nén Gzip</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/redirected/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình kiểm tra chuyển hướng', this, false)">Trình kiểm tra chuyển hướng</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/imagecompressor/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Nén PNG/JPG', this, false)">Nén PNG/JPG</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/down-or-not/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trang web có bị sập hay không', this, false)">Trang web có bị sập hay không</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/dummy-images-generator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo hình ảnh giả', this, false)">Trình tạo hình ảnh giả</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/abtest-calculator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tính toán thử nghiệm A/B', this, false)">Trình tính toán thử nghiệm A/B</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/free-qr-code-generator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo mã QR miễn phí', this, false)">Trình tạo mã QR miễn phí</a> </li> </ul> </li> <li class="menu-item-second-level menu-item-second-level-tools"> <span class="header-nav-cat-title newmenu_operationaltools">Các công cụ Hoạt động</span> <ul class="sub-menu "> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/screenresolution/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Độ phân giải màn hình của tôi', this, false)">Độ phân giải màn hình của tôi</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/multiple-url/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình mở nhiều URL', this, false)">Trình mở nhiều URL</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/sharelink/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo liên kết chia sẻ', this, false)">Trình tạo liên kết chia sẻ</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/jscssminifier/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình rút gọn JS & CSS', this, false)">Trình rút gọn JS & CSS</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/lorem-ipsum/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình tạo văn bản giả', this, false)">Trình tạo văn bản giả</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/vi/webtools/amp-validator/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'Trình xác thực AMP', this, false)">Trình xác thực AMP</a> </li> </ul> </li> </ul> </li><li class="header-nav-menu-item menu-item-blog "><a href = "https://www.websiteplanet.com/vi/blog/" onclick="trackClickout('event', 'Top_menu_Events', 'vi', 'blog', this, false)"><span>Blog</span></a></li></ul> </nav> <nav id="header-additional-nav" class="header-additional-nav header-nav"> <ul> <li class="header-search" id="header-nav-menu-item-search"> <form action="/vi/" role="search" id="header-searchform" class="search-form" method="get"> <div class="header-search-container"> <label for="header-search-submit" style="display:none;" ><span style="display:none;" >1</span></label> <input type="submit" id="header-search-submit" class="search-submit" value="Search" /> <label for="header-search-input" > <span style="display:none" >1</span></label> <input type="search" class="search-field" id="header-search-input" placeholder="Tìm kiếm..." value="" name="header-search-input" autocomplete="off" data-lang="vi"> <span id="header-nav-menu-item-search-close"></span> </div> </form> <span id="header-search-autocomplete" data-empty="Không có kết quả nào được tìm thấy" data-vendor-string="Đánh giá" data-post-string="Bài đăng blog" data-score-string="Điểm số của chúng tôi"></span> </li> <li class="header-nav-menu-item menu-item-has-children menu-item-currency" id="header-nav-menu-item-cur" tabindex="0"> <span class="header-nav-menu-item-text" id="header-nav-menu-item-text-cur" data-cur="VND">VND</span> <ul class="header-nav-sub-menu"> <li class="menu-currency-title">Các loại tiền hàng đầu</li> <li class="menu-item-second-level menu-item-second-level-currency-top"><span class="menu-currency-item" data-menu="€" data-cur="EUR"><b>€</b> Euro</span><span class="menu-currency-item" data-menu="US$" data-cur="USD"><b>US$</b> Đô la Mỹ</span><span class="menu-currency-item" data-menu="£" data-cur="GBP"><b>£</b> Bảng Anh</span><span id="current-currency" class="menu-currency-item" data-menu="AU$" data-cur="AUD"><b>AU$</b> Đô la Úc</span></li> <li class="menu-currency-title">Tất cả các loại tiền</li> <li class="menu-item-second-level menu-item-second-level-currency"><span class="menu-currency-item" data-menu="AR$" data-cur="ARS"><b>AR$</b> Peso Argentina</span><span class="menu-currency-item" data-menu="AU$" data-cur="AUD"><b>AU$</b> Đô la Úc</span><span class="menu-currency-item" data-menu="R$" data-cur="BRL"><b>R$</b> Real Brazil</span><span class="menu-currency-item" data-menu="BGN" data-cur="BGN"><b>BGN</b> Lev Bulgaria</span><span class="menu-currency-item" data-menu="CA$" data-cur="CAD"><b>CA$</b> Đô la Canada</span><span class="menu-currency-item" data-menu="CL$" data-cur="CLP"><b>CL$</b> Peso Chile</span><span class="menu-currency-item" data-menu="CNY" data-cur="CNY"><b>CNY</b> Nhân dân tệ</span><span class="menu-currency-item" data-menu="COL$" data-cur="COP"><b>COL$</b> Peso Columbia</span><span class="menu-currency-item" data-menu="Kč" data-cur="CZK"><b>Kč</b> Koruna Séc</span><span class="menu-currency-item" data-menu="DKK" data-cur="DKK"><b>DKK</b> Krone Đan Mạch</span></li><li class="menu-item-second-level menu-item-second-level-currency"><span class="menu-currency-item" data-menu="E£" data-cur="EGP"><b>E£</b> Bảng Ai Cập</span><span class="menu-currency-item" data-menu="€" data-cur="EUR"><b>€</b> Euro</span><span class="menu-currency-item" data-menu="HK$" data-cur="HKD"><b>HK$</b> Đô la Hong Kong</span><span class="menu-currency-item" data-menu="HUF" data-cur="HUF"><b>HUF</b> Forint</span><span class="menu-currency-item" 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t\u00f4i"},{"img":"https:\/\/dt2sdf0db8zob.cloudfront.net\/wp-content\/uploads\/2021\/07\/Logovietnix.png","width":2459,"height":665,"link":"https:\/\/www.websiteplanet.com\/goto.php?id=3275998&deep_id=0&lang=vi&btn_name=ssl-checkerAlternatives%type%_3275998_webtools_232816_1&post_id=232816&=0","onclick":"onClick=\"trackClickout('event', 'clickout', 'Vendor_review_link_tools', 'vietnix', this, true, );\"","score":"4.6","stars":"<span class=\"wsp-star-block vendor-medium vendors-item-stars star-rating-90\"><\/span>","desc":"C\u00e1c g\u00f3i c\u00f3 chi ph\u00ed c\u1ef1c th\u1ea5p v\u1edbi nhi\u1ec1u t\u00ednh n\u0103ng v\u00e0 c\u00e1c chi\u1ebft kh\u1ea5u gi\u1ea3m gi\u00e1 h\u00e0o ph\u00f3ng trong k\u1ef3 \u0111\u1ea7u ti\u00ean","usonly":0,"ourscore":"\u0110i\u1ec3m s\u1ed1 c\u1ee7a ch\u00fang t\u00f4i"}]}</script> <div class="ssl-header"> <div class="ssl-header-container"> <h1 class="ssl-title"> Trình kiểm tra SSL – Kiểm tra online miễn phí chứng chỉ web</h1> <p class="ssl-subtitle">Kiểm tra xem chứng chỉ SSL của bạn có được trình duyệt cài đặt đúng và đáng tin cậy không</p> </div> </div> <div class="ssl-form-wrapper"> <form action="" id="form"> <input type="text" id="input" placeholder="URL website của bạn"> <label for="input" ><span style="display:none" >1</span></label> <span id="form-clear"></span> <span class="error-message" id="error-message-empty">Trường này là bắt buộc</span> <span class="error-message" id="error-message-ugly">URL không hợp lệ. Vui lòng đảm bảo rằng url là chính xác!</span> <span class="form-desc">Ví dụ: www.websiteplanet.com</span> <button id="submit" type="submit">kiểm tra</button> </form> <div id="progress-block"><div id="bar"><div id="progress"></div></div></div> </div> <div id="ssl-result"></div> <div id="preloader"></div> <div id="vendors" class="ssl"></div> <div id="footer-disclosure" class="FTCfooter-b result"> <div class="ftc-wrapper-footer "><div class="ftc-container"><div id="ftc-blockc" class="ftc-block">Chúng tôi xếp hạng các nhà cung cấp dựa trên thử nghiệm và nghiên cứu khắt khe, nhưng cũng cân nhắc phản hồi của bạn và các thỏa thuận thương mại của chúng tôi với các nhà cung cấp. Trang này chứa các đường dẫn liên kết.<a href="https://www.websiteplanet.com/disclosure/" target="_blank">Tiết lộ Quảng cáo</a></div></div></div> </div> <div id="ssl-faq" style="width:90%;max-width: 850px;padding: 25px 0;margin: 0 auto;"> <div> <h2 class="tools-faq-title">Câu hỏi thường gặp</h2><h3 class="shortcode-faq-question-inline">Công cụ kiểm tra SSL của chúng tôi hoạt có tác dụng gì?</h3> <span class="shortcode-faq-answer-inline">Trình kiểm tra SSL của chúng tôi nhằm phát hiện các sự cố khi cài đặt chứng chỉ SSL của bạn. Với công cụ của chúng tôi, bạn có thể xác minh chứng chỉ SSL máy chủ web của mình để xem liệu nó có được cài đặt chính xác, hợp lệ và không gây ra bất kỳ vấn đề nào không.</span> <h3 class="shortcode-faq-question-inline">Tôi nên xem xét các tham số SSL nào để hiệu suất được mã hóa tối đa?</h3> <span class="shortcode-faq-answer-inline">Việc hiểu các tham số SSL là điều cần thiết trong thử nghiệm để có hiệu suất tối đa của lưu lượng truy cập thực tế và môi trường có liên quan. Khi bạn mua chứng chỉ SSL, hãy chú ý đến 3 yếu tố sau:<br /> 1. Trao đổi khóa công khai, ký khóa và trao đổi chứng chỉ<br /> 2. Mã hóa đối xứng, xác thực dữ liệu, bảo mật và hàm băm<br /> 3. Kích thước khóa – kích thước khóa càng cao, kết nối càng an toàn Công cụ kiểm tra SSL của chúng tôi cung cấp tất cả các chi tiết chứng chỉ cần thiết, chi tiết máy chủ và chi tiết chuỗi chứng chỉ để cung cấp cho bạn sự hiểu biết chung về các tham số chứng chỉ SSL của mình.</span> <h3 class="shortcode-faq-question-inline">Khi nào tôi nên gia hạn chứng chỉ SSL?</h3> <span class="shortcode-faq-answer-inline">Việc gia hạn có thể được thực hiện tối đa 90 ngày trước khi chứng chỉ được thiết lập hết hạn. Nếu chứng chỉ SSL của bạn hết hạn, trình duyệt web sẽ hiển thị cảnh báo về bảo mật trang web của bạn, điều này có thể cản trở nghiêm trọng niềm tin vào trang web của bạn. Nếu bạn không muốn bỏ lỡ thời hạn gia hạn, đừng lo – công cụ kiểm tra SSL của chúng tôi cung cấp khả năng thêm lời nhắc vào Lịch Google của bạn mà không có chi phí ẩn.</span> </div><div class="faq-anchor-link near-FTCfooter"><a href="#body" onclick="trackClickout('event', 'clickin', 'Anchor-ssl-checker', 'webtools', this, false);"><p>Dùng thử Trình kiểm tra Trình kiểm tra SSL miễn phí ngay</p> </a></div> <div class="FTCfooter-b"> <div class="ftc-wrapper-footer "><div class="ftc-container"><div id="ftc-blockc" class="ftc-block">Chúng tôi xếp hạng các nhà cung cấp dựa trên thử nghiệm và nghiên cứu khắt khe, nhưng cũng cân nhắc phản hồi của bạn và các thỏa thuận thương mại của chúng tôi với các nhà cung cấp. 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