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ipv4-block
Blog

Understanding RIR Transfer Rules Across Regions

Understanding RIR Transfer Rules Across Regions IPv4 addresses have become valuable operational assets. For ISPs, hosting providers, cloud platforms, enterprises, and network operators, obtaining IPv4 space is no longer just a technical task. It often involves policy review, registry approval, documentation, and regional compliance. At the center of this process are the five Regional Internet Registries, commonly known as RIRs: ARIN RIPE NCC APNIC LACNIC AFRINIC Each RIR managesRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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rent-ipv4-addresses
Blog

Rent IPv4 Addresses: The Enterprise Guide to Building Long-Term IPv4 Continuity

If you’re looking to rent IPv4 addresses, you’re not alone. Businesses worldwide continue to need IPv4 resources to support growth, expand infrastructure and meet customer demand. However, the conversation around IPv4 is changing. For years, businesses treated IPv4 as a procurement exercise. The process was simple: Find available IPv4 Acquire IPv4 Deploy IPv4 Today, that mindset is becoming outdated. IPv4 has evolved into critical infrastructure. At i.LEASE, we believeRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv4-marketplace
Blog

What a Continuity-Backed IPv4 Marketplace Actually Means

What is a continuity-backed IPv4 marketplace? A continuity-backed IPv4 marketplace is an IPv4 trading and leasing model designed to ensure IPv4 addresses remainoperationally usable after transfer, not just successfully traded. Execution is not paperwork. Execution is continuity under registry-layer uncertainty. – Heng.lu, Note:66 On Why i.LEASE Exists — and Why the Broker Question Is Really a Registry-Risk Question Definition: A continuity-backed IPv4 marketplace is a system where success isRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv4-leasing
Blog

How i.lease Simplifies IPv4 Leasing Across Multiple RIR Regions

In today’s Internet infrastructure economy, IPv4 address leasing has become a critical operational strategy for enterprises, cloud providers, and network operators facing persistent address scarcity. As IPv4 exhaustion continues across all five Regional Internet Registries (RIRs)—ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC—the need for structured, compliant, and cross-regional leasing solutions has never been greater. However, beneath the surface of what appears to be a simple “supply-and-demand” market lies aRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv4-transaction
Blog

Risk Placement in IPv4 Transactions: What Enterprises Should Know

The IPv4 market has quietly evolved into a structured secondary asset class. As global IPv4 exhaustion continues, enterprises, ISPs, and brokers now routinely engage in buying, leasing, and transferring IPv4 address blocks. Alongside this growth, one topic has become increasingly important—but still under-discussed: risk placement in IPv4 transactions. For organizations participating in this market, especially through platforms such as i.lease, understanding how risk is identified, allocated, and mitigated isRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv4-address-market
Blog

Understanding Operational Risk in IPv4 Address Markets

IPv4 has long stopped being a simple technical identifier system. It has become a constrained, priced, and operationally embedded infrastructure asset class. “In the IPv4 market, execution is not paperwork. Execution is continuity under registry-layer uncertainty.”https://heng.lu/on-why-i-lease-exists-and-why-the-broker-question-is-really-a-registry-risk-question/ Yet most of the industry still speaks about it as if it were a straightforward marketplace problem: buyers, sellers, brokers, escrow, transfer, done. That framing is increasingly outdated. The real structure of riskRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv4-allocation
Blog

Why most enterprises are accidentally exposed to IPv4 allocation failure risk

IPv4 scarcity is widely understood. What many enterprises still underestimate is the continuity risk surrounding how address resources are governed and maintained. Enterprises often maintain operational use of IPv4 resources without full visibility into the continuity conditions supporting those allocations. The growing reliance on leasing, transfers, and provider-managed infrastructure is reshaping IPv4 Allocation into a long-term governance issue. IPv4 Allocation has quietly become a continuity issue For many enterpriseRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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IPv4 Continuity Not Commodity
Blog

Why i.lease Exists: IPv4 Continuity Is Not Commodity Access

Most businesses enter the IPv4 market with a simple goal. They need addresses. Maybe they need them for hosting.Maybe they need them for VPN infrastructure.Maybe they need them for cloud services, SaaS platforms, telecom expansion, email systems, cybersecurity tools, or customer-facing applications. So they search for an IPv4 provider. They compare prices. They check block sizes. They ask how fast delivery can happen. They look for a seller, broker, Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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Running Code Primacy
Blog

Running-Code Primacy: Why IPv4 Leasing Should Be Judged by Operational Proof

IPv4 leasing often begins with a simple question: Can this provider give us the addresses? But for businesses that depend on IPv4 for hosting, VPN, SaaS, cloud, telecom, security, email delivery, or customer-facing platforms, that question is not enough. A better question is: Can this IPv4 structure prove that it works operationally? That is where Running-Code Primacy matters. Running-Code Primacy means that live operational reality should come before institutionalRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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IPv4 Poverty Penalty
Blog

IPv4 Poverty Penalty: Why Small Networks Pay More

IPv4 access can look equal on paper. The same registry forms.The same transfer rules.The same provider contracts.The same compliance language.The same renewal process. But equal paperwork does not always create equal outcomes. For large operators, IPv4 friction may be manageable. They may have legal teams, policy staff, network engineers, compliance support, capital reserves, and enough customers to spread the cost of delay across a larger business. For smaller operators, Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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IPv4 Renewal Risk: Who Protects Your Network?
Blog

IPv4 Renewal Risk: When Weak Accountability Becomes Running-Code Betrayal

Who is actually responsible for keeping this IPv4 access alive? Not who sold it.Not who introduced it.Not who issued the invoice.Not who sent the first LOA. Who owns the renewal risk when the relationship becomes stressed, the upstream source changes position, the documentation is questioned, or the provider chain no longer responds? For businesses that depend on IPv4 for hosting, SaaS, VPN, telecom, cloud, security, email delivery, or customerRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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ipv-assets
Blog

Why self-holding can expose IPv4 assets to registry risk

Self-holding IPv4 assets increases exposure to registry risk as compliance responsibility, transfer validation, and governance pressure are concentrated internally. Key points Self-holding IPv4 assets concentrate registry compliance responsibility, increasing exposure to audits, transfer validation issues, and documentation gaps. As IPv4 scarcity grows, registry governance becomes stricter, making ownership structure a key factor in operational risk. IPv4 ownership is now defined by governance, not possession IPv4 addresses are no longerRead more Related Posts What Is BGP Hijacking? How Route Hijacks Work, Famous Incidents, and How Networks Prevent Them BGP hijacking is the illegitimate takeover of traffic destined for IP address space, carried out by announcing routes for prefixes Which RIRs Support Inter-RIR IPv4 Transfers in 2026? IPv4 addresses may be globally routable, but transferring their registration from one organization to another is governed by Regional Internet What Is Reverse DNS (rDNS)? Why PTR Records Matter for Email, Hosting, and Leased IPv4 Reverse DNS (rDNS) is the process of resolving an IP address back to a domain name. It is the mirror .related-post {} .related-post .post-list { text-align: left; } .related-post .post-list .item { margin: 5px; padding: 10px; } .related-post .headline { font-size: 18px !important; color: #999999 !important; } .related-post .post-list .item .post_thumb { max-height: 220px; margin: 10px 0px; padding: 0px; display: block; } .related-post .post-list .item .post_title { font-size: 16px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } .related-post .post-list .item .post_excerpt { font-size: 13px; color: #3f3f3f; margin: 10px 0px; padding: 0px; display: block; text-decoration: none; } @media only screen and (min-width: 1024px) { .related-post .post-list .item { width: 30%; } } @media only screen and (min-width: 768px) and (max-width: 1023px) { .related-post .post-list .item { width: 90%; } } @media only screen and (min-width: 0px) and (max-width: 767px) { .related-post .post-list .item { width: 90%; } }

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