{"id":3632,"date":"2024-06-26T16:29:05","date_gmt":"2024-06-26T14:29:05","guid":{"rendered":"https:\/\/mijn.host\/blog\/hvad-er-ttl-dns\/"},"modified":"2026-09-16T12:08:13","modified_gmt":"2026-09-16T10:08:13","slug":"hvad-er-ttl-dns","status":"publish","type":"post","link":"https:\/\/my.host\/blog\/dk\/hvad-er-ttl-dns\/","title":{"rendered":"Hvad er TTL (DNS)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u00c6ndringer i dine DNS-poster? S\u00e5 har du sikkert set termen <strong>TTL<\/strong>. Denne TTL rejser mange sp\u00f8rgsm\u00e5l hos dom\u00e6neadministratorer, og det forst\u00e5r vi godt hos my.host. Derfor bringer vi med denne artikel lidt mere klarhed om, hvad TTL pr\u00e6cis er, og hvordan du bruger det.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e6s derfor artiklen nedenfor for at f\u00e5 svar p\u00e5 f\u00f8lgende sp\u00f8rgsm\u00e5l og emner:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hvad st\u00e5r TTL for;<\/li>\n\n\n\n<li>Hvad bruger du TTL til i en DNS-post;<\/li>\n\n\n\n<li>De v\u00e6rdier du v\u00e6lger for TTL.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"hvad-star-ttl-for\" class=\"wp-block-heading\"><strong>Hvad st\u00e5r \u201cTTL\u201d for<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TTL st\u00e5r for \u201cTime To Live\u201d og betyder praktisk talt en slags timer for, hvor l\u00e6nge en post caches af DNS.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DNS st\u00e5r for Domain Name System og er et system, der best\u00e5r af databaser. Disse databaser overs\u00e6tter IP-adresser til det dom\u00e6nenavn, du har opfundet og anmodet om. DNS kan ogs\u00e5 holde styr p\u00e5 hjemmesidenavne og tilh\u00f8rende IP-adresser.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Time To Live, eller TTL, angiver alts\u00e5 inden for disse dom\u00e6nenavnsystemer, hvor l\u00e6nge den fastholder en post, f\u00f8r du skal foretage en ny foresp\u00f8rgsel. Derudover angiver TTL, hvor hurtigt og hvor ofte henvisningerne af poster i dom\u00e6nenavnsystemet \u00e6ndrer sig.&nbsp;<\/p>\n\n\n\n<h2 id=\"hvad-bruger-du-ttl-til-i-en-dnsrecord\" class=\"wp-block-heading\"><strong>Hvad bruger du TTL til i en DNS-record<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e5r du vil \u00e6ndre din IP-adresse, er det praktisk at indstille en TTL. Dette g\u00f8r du for at forhindre, at din hjemmeside er midlertidigt utilg\u00e6ngelig eller ikke tilg\u00e6ngelig. Denne tid kaldes ofte ogs\u00e5 \u201cnedetid\u201d, og dette undg\u00e5r du helst til enhver tid.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ogs\u00e5 n\u00e5r du foretager andre \u00e6ndringer i din DNS, er det altid en god id\u00e9 at indstille en Time To Live (TTL). P\u00e5 den m\u00e5de har brugerne af din hjemmeside ikke ubehag ved forandringer, og trafikken kan forts\u00e6tte.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00f8rg dog for at indstille TTL p\u00e5 et tidspunkt, hvor du faktisk skal foretage \u00e6ndringer, da en TTL ofte ikke varer i dage, og det anbefales heller ikke for din hjemmeside og DNS. Du udskyder blot tiden, hvorefter det unders\u00f8ges, om der er \u00e6ndret en DNS-post.&nbsp;<\/p>\n\n\n\n<h2 id=\"de-vaerdier-du-vaelger-for-ttl\" class=\"wp-block-heading\"><strong>De v\u00e6rdier du v\u00e6lger for TTL<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For TTL v\u00e6lger du mellem en r\u00e6kke v\u00e6rdier, du indstiller, disse v\u00e6rdier varierer i minimum, standard og maksimum TTL.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Minimum TTL har en v\u00e6rdi p\u00e5 600 sekunder og indstilles s\u00e5ledes som minimum. Denne TTL svarer til 10 minutter, hvor der ikke s\u00f8ges efter \u00e6ndringer i DNS-posten.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Standard TTL har en v\u00e6rdi p\u00e5 3600 sekunder, hvilket svarer til 1 time. Inden for denne time s\u00f8ges der ikke efter \u00e6ndringer, og din hjemmeside forbliver aktiv.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Maksimum TTL har en v\u00e6rdi p\u00e5 86.400 sekunder, 24 timer hvor du kan foretage \u00e6ndringer i din DNS eller IP-adresse uden, at din hjemmeside ligger nede.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Det er ogs\u00e5 muligt at v\u00e6lge andre v\u00e6rdier, men vi anbefaler, at du aldrig g\u00e5r under 300 sekunder. Dette fordi de store udbydere som KPN eller Ziggo ofte ikke accepterer dette.&nbsp;<\/p>\n\n\n\n<h2 id=\"tjenesterne-fra-myhostnbsp\" class=\"wp-block-heading\"><strong>Tjenesterne fra my.host <\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hos my.host tilbyder vi forskellige tjenester, der g\u00f8r det lettere at administrere en hjemmeside og dermed et dom\u00e6ne. Vi tilbyder fx <a href=\"https:\/\/my.host\/\">webhosting<\/a> eller registrering eller <a href=\"https:\/\/my.host\/domeinnaam\/verhuizen\/\">flytning af dom\u00e6nenavne<\/a>.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tag et kig p\u00e5 <a href=\"https:\/\/my.host\/\">vores tjenester<\/a> for mere information eller send os en besked med anmodninger eller sp\u00f8rgsm\u00e5l.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-group has-base-background-color has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-f4463924 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40);padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-461897f4 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\">\n<svg style=\"max-width:50px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewBox=\"0.04 0.04 16.24 16.12\">\n    <g clip-path=\"url(#clip0_474_4172)\">\n        <path d=\"M9.52521 16.151C13.2539 16.151 16.2766 13.1283 16.2766 9.39959C16.2766 5.6709 13.2539 2.64819 9.52521 2.64819C5.79651 2.64819 2.7738 5.6709 2.7738 9.39959C2.7738 13.1283 5.79651 16.151 9.52521 16.151Z\" fill=\"#CCEDFD\"\/>\n        <path d=\"M7.53644 14.2878C11.2651 14.2878 14.2878 11.2651 14.2878 7.53644C14.2878 3.80774 11.2651 0.785034 7.53644 0.785034C3.80774 0.785034 0.785034 3.80774 0.785034 7.53644C0.785034 11.2651 3.80774 14.2878 7.53644 14.2878Z\" stroke=\"#003F5D\" stroke-width=\"1.5\" stroke-miterlimit=\"10\"\/>\n        <path d=\"M7.5365 14.2878C8.93549 14.2878 10.0696 11.2651 10.0696 7.53644C10.0696 3.80774 8.93549 0.785034 7.5365 0.785034C6.13752 0.785034 5.00342 3.80774 5.00342 7.53644C5.00342 11.2651 6.13752 14.2878 7.5365 14.2878Z\" stroke=\"#003F5D\" stroke-width=\"1.5\" stroke-miterlimit=\"10\"\/>\n        <path d=\"M14.2983 7.5365H0.785034\" stroke=\"#003F5D\" stroke-width=\"1.5\" stroke-miterlimit=\"10\"\/>\n    <\/g>\n<\/svg>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-secondary-color has-text-color wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0\"><strong>Domeinnaam bestellen?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0\">Een goede naam zorgt voor een goede website.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/my.host\/domeinnaam\/?utm_source=my.host&amp;utm_medium=blog&amp;utm_content=cta\" target=\"_blank\" rel=\"noreferrer noopener\">Bestel nu<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00c6ndrer du dine DNS-poster? S\u00e5 har du sikkert set termen TTL. Denne TTL rejser mange sp\u00f8rgsm\u00e5l hos dom\u00e6neadministratorer, og det forst\u00e5r vi godt hos my.host. Derfor giver vi med denne artikel mere klarhed over, hvad TTL pr\u00e6cist er, og hvordan du bruger det. L\u00e6s artiklen nedenfor for at [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":1250,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"hide_cta_migrate_site":false,"hide_toc_block":false,"footnotes":""},"categories":[657,625],"tags":[599],"class_list":["post-3632","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domaenenavne","category-tips-og-tricks","tag-dns"],"lang":"da","translations":{"da":3632,"sv":3845,"nl":1249,"nb":3754,"en":3259},"pll_sync_post":{},"_links":{"self":[{"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/posts\/3632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/comments?post=3632"}],"version-history":[{"count":1,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/posts\/3632\/revisions"}],"predecessor-version":[{"id":4094,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/posts\/3632\/revisions\/4094"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/media\/1250"}],"wp:attachment":[{"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/media?parent=3632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/categories?post=3632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/my.host\/blog\/wp-json\/wp\/v2\/tags?post=3632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}