https://cloud.aptranet.com/blog Cloud CDN and Cloud DNS guides from Aptranet. en-gb Fri, 23 Oct 2026 19:19:35 GMT https://cloud.aptranet.com/blog/managed-dns-vs-registrar-dns https://cloud.aptranet.com/blog/managed-dns-vs-registrar-dns Wed, 19 Aug 2026 00:00:00 GMT Managed Cloud DNS adds Anycast, health checks, flattening and low TTLs. Registrar DNS is a default, not a traffic-steering platform. https://cloud.aptranet.com/blog/what-to-look-for-in-a-cdn-provider https://cloud.aptranet.com/blog/what-to-look-for-in-a-cdn-provider Sat, 15 Aug 2026 00:00:00 GMT A 2026 CDN checklist: footprint, Origin Shield, HTTP/3, image and video, purge, DNS cutover, origin protection and a migration you can rehearse. https://cloud.aptranet.com/blog/cloud-cdn-vs-self-hosted-nginx https://cloud.aptranet.com/blog/cloud-cdn-vs-self-hosted-nginx Wed, 12 Aug 2026 00:00:00 GMT An nginx cache near the application and a distributed CDN solve overlapping but different delivery problems. https://cloud.aptranet.com/blog/multi-cdn-explained https://cloud.aptranet.com/blog/multi-cdn-explained Sat, 08 Aug 2026 00:00:00 GMT Multi-CDN is an architecture, not a default. Get one Cloud CDN distribution correct, then add a second path if you have a real failure domain to cover. https://cloud.aptranet.com/blog/dns-ddos https://cloud.aptranet.com/blog/dns-ddos Wed, 05 Aug 2026 00:00:00 GMT A DNS flood takes the name off the internet before the CDN sees a request. Cloud DNS Anycast is built to stay reachable under volumetric attack. https://cloud.aptranet.com/blog/anycast-vs-unicast-dns https://cloud.aptranet.com/blog/anycast-vs-unicast-dns Tue, 04 Aug 2026 00:00:00 GMT Anycast changes how a service address is reached; unicast assigns an address to a specific destination. Neither label alone proves operational resilience. https://cloud.aptranet.com/blog/cdn-vs-no-cdn https://cloud.aptranet.com/blog/cdn-vs-no-cdn Sat, 01 Aug 2026 00:00:00 GMT A CDN adds an operational layer that can improve reusable content delivery. Its benefit depends on traffic geography, cacheability, and configuration. https://cloud.aptranet.com/blog/hide-origin-ip https://cloud.aptranet.com/blog/hide-origin-ip Wed, 29 Jul 2026 00:00:00 GMT A CDN only hides origin if DNS points at the edge and the origin IP is firewalled to Cloud CDN pull. https://cloud.aptranet.com/blog/origin-offload https://cloud.aptranet.com/blog/origin-offload Sat, 25 Jul 2026 00:00:00 GMT Origin offload is cache hit ratio plus Shield plus hiding the origin IP. How Cloud CDN reduces worker and bandwidth cost. https://cloud.aptranet.com/blog/cache-hit-ratio-explained https://cloud.aptranet.com/blog/cache-hit-ratio-explained Thu, 23 Jul 2026 00:00:00 GMT Calculate request hit ratio and byte offload, identify cache-key fragmentation, and improve reuse without caching private responses. https://cloud.aptranet.com/blog/token-authentication-for-downloads https://cloud.aptranet.com/blog/token-authentication-for-downloads Wed, 22 Jul 2026 00:00:00 GMT Gate cached Cloud CDN objects with secure tokens so paid downloads, pre-load depots and premium video are not freely shareable. https://cloud.aptranet.com/blog/why-websites-are-slow-in-other-countries https://cloud.aptranet.com/blog/why-websites-are-slow-in-other-countries Sat, 18 Jul 2026 00:00:00 GMT Build a regional performance test that separates network latency, cache behavior, and browser work—then fix the part your visitors actually wait for. https://cloud.aptranet.com/blog/http2-vs-http3 https://cloud.aptranet.com/blog/http2-vs-http3 Thu, 16 Jul 2026 00:00:00 GMT HTTP/2 multiplexes over TCP. HTTP/3 uses QUIC. Cloud CDN offers both, with HTTP/2 as fallback when UDP is blocked. https://cloud.aptranet.com/blog/tls-1-3-at-the-edge https://cloud.aptranet.com/blog/tls-1-3-at-the-edge Wed, 15 Jul 2026 00:00:00 GMT Terminate TLS 1.3 on Cloud CDN with managed Let's Encrypt or a custom certificate, force HTTPS at the edge, and validate origin TLS. https://cloud.aptranet.com/blog/http3-and-cdn https://cloud.aptranet.com/blog/http3-and-cdn Sat, 11 Jul 2026 00:00:00 GMT HTTP/3 changes transport between the client and the edge; the edge-to-origin connection is a separate choice. https://cloud.aptranet.com/blog/brotli-vs-gzip https://cloud.aptranet.com/blog/brotli-vs-gzip Thu, 09 Jul 2026 00:00:00 GMT Brotli typically beats Gzip on HTML, CSS, JS and JSON. Cloud CDN negotiates encoding at the edge and leaves media binaries alone. https://cloud.aptranet.com/blog/ddos-and-cdn https://cloud.aptranet.com/blog/ddos-and-cdn Wed, 08 Jul 2026 00:00:00 GMT DDoS resilience depends on the protected traffic path, the attack type, and the capacity of every exposed dependency. https://cloud.aptranet.com/blog/self-host-fonts-on-a-cdn https://cloud.aptranet.com/blog/self-host-fonts-on-a-cdn Sat, 04 Jul 2026 00:00:00 GMT Host WOFF2 files on Cloud CDN with long TTLs, CORS and HTTP/3 so font requests stay first-party and off the critical path. https://cloud.aptranet.com/blog/how-to-improve-page-speed https://cloud.aptranet.com/blog/how-to-improve-page-speed Thu, 02 Jul 2026 00:00:00 GMT Page speed for global users is cache, image weight, fonts and handshake. What Cloud CDN changes, and what still belongs in the application. https://cloud.aptranet.com/blog/how-cdn-protects-origin https://cloud.aptranet.com/blog/how-cdn-protects-origin Wed, 01 Jul 2026 00:00:00 GMT Cloud CDN hides origin behind TLS, Origin Shield, access policies and L3-L7 DDoS mitigation so the public hostname is the edge. https://cloud.aptranet.com/blog/large-file-cdn-downloads https://cloud.aptranet.com/blog/large-file-cdn-downloads Sat, 27 Jun 2026 00:00:00 GMT Distribute installers, datasets and game patches through Cloud CDN with large-file optimisation, Origin Shield and versioned URLs. https://cloud.aptranet.com/blog/registrar-dns-vs-cloud-dns https://cloud.aptranet.com/blog/registrar-dns-vs-cloud-dns Thu, 25 Jun 2026 00:00:00 GMT Registrar DNS is fine for a parked domain. Production shops and APIs need Anycast, health checks, flattening and low TTLs on Cloud DNS. https://cloud.aptranet.com/blog/core-web-vitals-and-cdn https://cloud.aptranet.com/blog/core-web-vitals-and-cdn Tue, 23 Jun 2026 00:00:00 GMT How Cloud CDN improves LCP with cached HTML, images and HTTP/3, what it cannot fix in INP, and how to stop origin distance from dominating field data. https://cloud.aptranet.com/blog/how-to-cache-api-get-requests https://cloud.aptranet.com/blog/how-to-cache-api-get-requests Sat, 20 Jun 2026 00:00:00 GMT Cache public API GETs at Cloud CDN with explicit TTLs and purge, bypass Authorization-varying JSON, and shield the API origin. https://cloud.aptranet.com/blog/vanity-nameservers https://cloud.aptranet.com/blog/vanity-nameservers Thu, 18 Jun 2026 00:00:00 GMT Present ns1.example.com while Cloud DNS Anycast still answers. Glue, DNSSEC and why most zones do not need vanity NS. https://cloud.aptranet.com/blog/how-to-reduce-ttfb https://cloud.aptranet.com/blog/how-to-reduce-ttfb Tue, 16 Jun 2026 00:00:00 GMT Separate connection setup, origin processing, and cache misses before choosing a fix for Time to First Byte. https://cloud.aptranet.com/blog/live-streaming-on-a-cdn https://cloud.aptranet.com/blog/live-streaming-on-a-cdn Sat, 13 Jun 2026 00:00:00 GMT Deliver live HLS or DASH with Cloud CDN at 0.5-4 s latency, Origin Shield in front of the encoder, and a rehearsal before the event. https://cloud.aptranet.com/blog/ipv6-dns-aaaa-records https://cloud.aptranet.com/blog/ipv6-dns-aaaa-records Thu, 11 Jun 2026 00:00:00 GMT Publish AAAA only for endpoints that speak IPv6, serve authority over IPv6, and health-check both families on Cloud DNS. https://cloud.aptranet.com/blog/static-vs-dynamic-content https://cloud.aptranet.com/blog/static-vs-dynamic-content Tue, 09 Jun 2026 00:00:00 GMT What is static, what is dynamic, and which dynamic responses Cloud CDN can still cache: anonymous HTML, ISR pages and public API GETs. https://cloud.aptranet.com/blog/cdn-for-video-on-demand https://cloud.aptranet.com/blog/cdn-for-video-on-demand Sat, 06 Jun 2026 00:00:00 GMT Cache HLS and DASH segments and progressive files at Cloud CDN, use Origin Shield, and keep packaging at your encoder. https://cloud.aptranet.com/blog/how-to-lower-ttl-before-migration https://cloud.aptranet.com/blog/how-to-lower-ttl-before-migration Thu, 04 Jun 2026 00:00:00 GMT Lower TTLs before a CDN or origin cutover, preserve mail records, and restore normal lifetimes after the new path is stable. https://cloud.aptranet.com/blog/cdn-vs-reverse-proxy https://cloud.aptranet.com/blog/cdn-vs-reverse-proxy Tue, 02 Jun 2026 00:00:00 GMT A reverse proxy sits in one place. A CDN is a global cache and TLS edge. When to use nginx or an application proxy, and when to use Cloud CDN. https://cloud.aptranet.com/blog/image-optimization-webp-avif https://cloud.aptranet.com/blog/image-optimization-webp-avif Sat, 30 May 2026 00:00:00 GMT The useful image format is the smallest acceptable representation for the actual layout and browser, not a codec name in isolation. https://cloud.aptranet.com/blog/weighted-dns-load-balancing https://cloud.aptranet.com/blog/weighted-dns-load-balancing Thu, 28 May 2026 00:00:00 GMT Use Cloud DNS weights and subnet load balancing to canary a pool, then raise traffic as it proves in, with health checks on every target. https://cloud.aptranet.com/blog/what-is-a-point-of-presence https://cloud.aptranet.com/blog/what-is-a-point-of-presence Tue, 26 May 2026 00:00:00 GMT A point of presence is useful when its network path, capacity, and cache behavior suit your users; location count alone cannot establish that. https://cloud.aptranet.com/blog/how-to-purge-cdn-cache https://cloud.aptranet.com/blog/how-to-purge-cdn-cache Sat, 23 May 2026 00:00:00 GMT Purge Cloud CDN by URL, file or directory, prefetch before launches, and avoid global wipe that turns into an origin incident. https://cloud.aptranet.com/blog/dns-health-checks https://cloud.aptranet.com/blog/dns-health-checks Thu, 21 May 2026 00:00:00 GMT Cloud DNS health checks monitor endpoints and remove them from eligible GeoDNS and weighted answers when they fail. https://cloud.aptranet.com/blog/cache-control-headers https://cloud.aptranet.com/blog/cache-control-headers Tue, 19 May 2026 00:00:00 GMT Use public, private, no-store, max-age, and s-maxage correctly, with concrete response examples and a safe validation checklist. https://cloud.aptranet.com/blog/origin-shield-explained https://cloud.aptranet.com/blog/origin-shield-explained Sat, 16 May 2026 00:00:00 GMT A shield adds an upstream cache tier that can reduce origin fetches when several edges need the same object. https://cloud.aptranet.com/blog/dnssec-explained https://cloud.aptranet.com/blog/dnssec-explained Thu, 14 May 2026 00:00:00 GMT DNSSEC signs authoritative answers so validating resolvers can reject spoofed records. How it coexists with GeoDNS, Anycast and low TTLs on Cloud DNS. https://cloud.aptranet.com/blog/how-dns-works https://cloud.aptranet.com/blog/how-dns-works Tue, 12 May 2026 00:00:00 GMT A DNS lookup is usually served from a resolver cache; a cold lookup follows delegations until it reaches the relevant authority. https://cloud.aptranet.com/blog/django-staticfiles-cdn https://cloud.aptranet.com/blog/django-staticfiles-cdn Sat, 09 May 2026 00:00:00 GMT Take Django collectstatic and public media off WSGI workers with Cloud CDN, while admin and CSRF views stay on origin. https://cloud.aptranet.com/blog/cname-flattening-explained https://cloud.aptranet.com/blog/cname-flattening-explained Thu, 07 May 2026 00:00:00 GMT CNAME flattening lets example.com alias a CDN or app hostname while MX and TXT remain at the apex. How Cloud DNS implements it. https://cloud.aptranet.com/blog/what-is-authoritative-dns https://cloud.aptranet.com/blog/what-is-authoritative-dns Tue, 05 May 2026 00:00:00 GMT Authoritative DNS publishes your zone’s answers; recursive resolvers find and cache those answers for clients. https://cloud.aptranet.com/blog/laravel-asset-url-cdn https://cloud.aptranet.com/blog/laravel-asset-url-cdn Sat, 02 May 2026 00:00:00 GMT Point Laravel Vite and Mix builds at Cloud CDN with ASSET_URL, cache public storage, and keep session Blade on origin. https://cloud.aptranet.com/blog/dns-ttl-explained https://cloud.aptranet.com/blog/dns-ttl-explained Thu, 30 Apr 2026 00:00:00 GMT Understand what TTL controls, why lowering it takes time, and how to plan a DNS change with a realistic rollback window. https://cloud.aptranet.com/blog/how-to-migrate-to-a-cdn https://cloud.aptranet.com/blog/how-to-migrate-to-a-cdn Tue, 28 Apr 2026 00:00:00 GMT Migrate to Cloud CDN without downtime: connect the origin, validate on a test hostname, lower DNS TTLs, then cut over the production domain. https://cloud.aptranet.com/blog/nextjs-cdn-caching-guide https://cloud.aptranet.com/blog/nextjs-cdn-caching-guide Sat, 25 Apr 2026 00:00:00 GMT Cache Next.js /_next/static forever, cache ISR and anonymous SSR HTML at Cloud CDN, and bypass draft mode and session routes. https://cloud.aptranet.com/blog/dns-failover-guide https://cloud.aptranet.com/blog/dns-failover-guide Thu, 23 Apr 2026 00:00:00 GMT DNS failover changes future answers after health policy changes. Detection, cached answers, and client reconnection determine recovery. https://cloud.aptranet.com/blog/how-to-choose-a-cdn https://cloud.aptranet.com/blog/how-to-choose-a-cdn Tue, 21 Apr 2026 00:00:00 GMT What to evaluate in a CDN: PoP footprint, cache control, Origin Shield, HTTP/3, image and video delivery, DNS cutover and origin protection. https://cloud.aptranet.com/blog/how-to-cache-woocommerce-without-breaking-checkout https://cloud.aptranet.com/blog/how-to-cache-woocommerce-without-breaking-checkout Sat, 18 Apr 2026 00:00:00 GMT Cache WooCommerce catalogues and product images at Cloud CDN while cart, checkout and account pages stay dynamic on origin. https://cloud.aptranet.com/blog/geodns-explained https://cloud.aptranet.com/blog/geodns-explained Thu, 16 Apr 2026 00:00:00 GMT GeoDNS returns different records by location, ASN or subnet. How Cloud DNS steers resolvers — and why it sees the resolver, not the laptop. https://cloud.aptranet.com/blog/how-a-cdn-works https://cloud.aptranet.com/blog/how-a-cdn-works Tue, 14 Apr 2026 00:00:00 GMT Walk through a Cloud CDN request: Anycast to a nearby PoP, cache lookup, Origin Shield on a miss, and purge when the source changes. https://cloud.aptranet.com/blog/how-to-set-up-a-cdn-for-wordpress https://cloud.aptranet.com/blog/how-to-set-up-a-cdn-for-wordpress Sat, 11 Apr 2026 00:00:00 GMT Put Cloud CDN in front of WordPress: cache themes, media and anonymous pages, keep wp-admin on origin, then cut over DNS. https://cloud.aptranet.com/blog/what-is-anycast-dns https://cloud.aptranet.com/blog/what-is-anycast-dns Thu, 09 Apr 2026 00:00:00 GMT Anycast advertises the same service address from multiple locations. Routing selects a path; it does not promise the geographically nearest server. https://cloud.aptranet.com/blog/what-is-a-cdn https://cloud.aptranet.com/blog/what-is-a-cdn Wed, 08 Apr 2026 00:00:00 GMT Follow a request from the browser to the edge and origin. Learn where a CDN helps, what stays uncached, and how to validate the setup.