200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.25	576	287	83 %	84 %
2	Number of Top 100 Shared Factors Used Diversity	-0.23	36	28	97 %	98 %
3	Number of Top 200 Shared Factors Used Diversity	-0.23	48	37	97 %	98 %
4	Entities in Sentences Relevancy	-0.22	316	142	68 %	98 %
5	Entities in H2 Tags	-0.22	46	7	48 %	98 %
6	Entities in H3 Tags	-0.22	19	8	40 %	97 %
7	Variations in Search Result Document File Name Relevancy	-0.22	8	2	45 %	83 %
8	Entities in the HTML Tag Relevancy	-0.22	320	144	74 %	98 %
9	Number of Unique Variations Used Diversity	-0.22	18	6	74 %	83 %
10	Number of Top 50 Shared Factors Used Diversity	-0.22	15	12	95 %	98 %
11	Variations in H1, H2, and H3 Tags Relevancy	-0.22	378	26	57 %	95 %
12	Number of Distinct Entities Used Diversity	-0.21	52	29	81 %	98 %
13	Variations in H1-H6 Tags Relevancy	-0.21	409	29	58 %	95 %
14	Variations in H1 and H2 Tags Relevancy	-0.21	287	14	55 %	95 %
15	Entities in H1 Tags	-0.21	4	2	47 %	88 %
16	Variations in P Tags Relevancy	-0.21	4557	345	58 %	95 %
17	Variations in Div Tags Relevancy	-0.2	68329	3567	67 %	91 %
18	Entities in Title Tag Relevancy	-0.2	5	3	64 %	97 %
19	Uses Schema sku Other	-0.2	1	1	13 %	19 %
20	Number of Factors Used Diversity	-0.2	233	167	97 %	90 %
21	Search Result Domain is .com, .net, or .org Other	-0.2	1	1	6 %	78 %
22	Has Entities in H1 Tags Relevancy	-0.2	1	1	52 %	90 %
23	Variations in Search Result URL Path Relevancy	-0.2	10	2	47 %	86 %
24	Uses JSON-LD sku Other	-0.19	1	1	11 %	19 %
25	Search Result Domain is .com Other	-0.19	1	1	6 %	78 %
26	Number of Heading Tags Size	-0.19	37	21	68 %	95 %
27	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	32	3	42 %	93 %
28	Load Time Milliseconds Performance	-0.19	2818	1088	82 %	86 %
29	Unabridged Word Count Size	-0.19	9873	1924	82 %	93 %
30	Has Entities in H2 Tags Relevancy	-0.19	1	1	51 %	91 %
31	Number of Images Size	-0.19	309	37	68 %	93 %
32	Number of P Tags Size	-0.19	75	37	67 %	97 %
33	Has Entities in H3 Tags Relevancy	-0.19	1	1	43 %	93 %
34	Variations in A Tag HREF Attributes Relevancy	-0.19	2876	202	52 %	86 %
35	Number of H3 Tags Size	-0.19	16	9	53 %	86 %
36	Variations in Body Tags Relevancy	-0.19	93621	3601	72 %	86 %
37	Variations in HTML Tags Relevancy	-0.19	93621	3601	72 %	86 %
38	Variations in Main Tags Relevancy	-0.19	40166	1861	37 %	95 %
39	LSI Words in Sentences Relevancy	-0.19	2378	765	63 %	98 %
40	Variations in LI Tags Relevancy	-0.19	2914	231	56 %	93 %
41	Number of Images with ALT Text Size	-0.19	304	27	61 %	90 %
42	Clean Text Kilobytes Size	-0.19	54	13	66 %	93 %
43	Word Count Size	-0.19	2930	1410	82 %	95 %
44	Variations in H2 Tags Relevancy	-0.19	280	13	41 %	91 %
45	Leading Variations in H1-H6 Tags Relevancy	-0.19	36	4	44 %	90 %
46	Variations in Distinct A Tag HREF Attributes Relevancy	-0.18	1808	130	53 %	90 %
47	Variations in the Canonical URL Relevancy	-0.18	50	5	46 %	84 %
48	Number of Backlinks Authority	-0.18	109241	9361	54 %	81 %
49	Number of Referring Domains Authority	-0.18	3169	236	55 %	81 %
50	Number of H2 Tags Size	-0.18	23	7	60 %	91 %
51	Number of H1 Tags Size	-0.18	3	1	63 %	97 %
52	Title Tag Has Entities Relevancy	-0.18	1	1	64 %	78 %
53	Variations in A Tags Relevancy	-0.18	9305	443	59 %	91 %
54	Variations in H3 Tags Relevancy	-0.18	123	11	32 %	90 %
55	Number of HTML Tags Size	-0.18	2805	1101	82 %	91 %
56	Variations in H1 Tags Relevancy	-0.18	20	2	48 %	91 %
57	Average Words Per Sentence Size	-0.18	77	30	71 %	84 %
58	Number of Do Follow Backlinks Authority	-0.18	61547	6930	51 %	79 %
59	Variations in the Title Tag Relevancy	-0.18	23	3	61 %	81 %
60	Variations in Sentences Relevancy	-0.18	8372	490	66 %	95 %
61	Variations in First 100 Words Relevancy	-0.18	177	19	59 %	83 %
62	Variations in Search Result URL Relevancy	-0.17	21	3	58 %	83 %
63	Entities in Meta Description Tag Relevancy	-0.17	6	3	56 %	86 %
64	Number of HTML Comments Size	-0.17	166	52	63 %	86 %
65	Variations in Section Tags Relevancy	-0.17	1250	104	34 %	91 %
66	Variation Count in Top 30KB Relevancy	-0.17	4928	252	60 %	91 %
67	Number Of JSON-LD Types Relevancy	-0.17	55	11	47 %	88 %
68	Number of Internal Links Authority	-0.17	619	130	73 %	91 %
69	LSI Words in H2 Tags Relevancy	-0.17	91	20	52 %	98 %
70	Variations in Span Tags Relevancy	-0.17	1077	70	48 %	90 %
71	Number of Links Authority	-0.17	624	144	74 %	95 %
72	Number of HTTPS Links Authority	-0.17	623	143	74 %	95 %
73	Number of No Follow Backlinks Authority	-0.17	47695	2775	41 %	72 %
74	Term Frequency Relevancy	-0.17	6	3	72 %	93 %
75	Leading Variations in H1 Tags Relevancy	-0.17	2	1	30 %	88 %
76	Number of DoFollow Links Authority	-0.17	614	138	74 %	97 %
77	Variations in OpenGraph Description Relevancy	-0.17	45	5	45 %	78 %
78	Variations in Search Result Display URL Relevancy	-0.17	19	3	78 %	81 %
79	Variations in Search Result Link Text Relevancy	-0.17	19	3	78 %	81 %
80	Variations in OpenGraph Title Relevancy	-0.16	16	2	51 %	83 %
81	Uses Schema transcript Other	-0.16	1	1	2 %	12 %
82	Number of Questions In Headings Size	-0.16	6	2	30 %	88 %
83	Has Terms of Service Trust	-0.16	1	1	44 %	53 %
84	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	28	68 %	79 %
85	Number of External Links Authority	-0.16	29	15	70 %	95 %
86	Number of Images without ALT Text Size	-0.16	22	10	51 %	97 %
87	LSI Words in H3 Tags Relevancy	-0.16	97	24	45 %	95 %
88	Variations in ALT Attributes Relevancy	-0.16	588	22	39 %	93 %
89	Exact Matches in H1-H6 Tags Relevancy	-0.16	8	2	23 %	88 %
90	Number of DoFollow External Links Authority	-0.16	28	13	69 %	93 %
91	Variations in Absolute URLs Relevancy	-0.16	14393	865	58 %	91 %
92	LSI Words in H1 Tags Relevancy	-0.16	10	4	51 %	93 %
93	Has JSON-LD Schema Markup Relevancy	-0.16	1	1	46 %	88 %
94	TF/IDF Relevancy	-0.16	2	1	59 %	91 %
95	Exact Matches in the HTML Tag Relevancy	-0.16	242	19	35 %	90 %
96	Number of Facebook Pages Authority	-0.15	3	2	47 %	81 %
97	Has Meta Charset Technology	-0.15	1	1	69 %	86 %
98	Variations in Meta Description Relevancy	-0.15	49	4	52 %	79 %
99	Is Home Page Other	-0.15	1	1	25 %	34 %
100	Leading Variations in H2 Tags Relevancy	-0.15	22	2	24 %	83 %
101	Uses Schema product Other	-0.15	1	1	12 %	50 %
102	Percentage of DoFollow Links Authority	-0.15	94	77	74 %	95 %
103	Number of Forms Technology	-0.15	10	2	46 %	83 %
104	Entities in H4 Tags	-0.15	21	3	19 %	95 %
105	Title Word Count Size	-0.15	12	8	80 %	71 %
106	Uses JSON-LD Product Other	-0.15	1	1	11 %	52 %
107	LSI Words in Title Tag Relevancy	-0.15	11	5	66 %	91 %
108	Leading Variations in Title Tag Relevancy	-0.15	1	1	33 %	93 %
109	Exact Matches in Sentences Relevancy	-0.15	37	5	27 %	88 %
110	Search Result Number of Dirs in Path Other	-0.15	3	2	72 %	78 %
111	Uses Schema brand Other	-0.15	1	1	8 %	40 %
112	Uses JSON-LD feesAndCommissionsSpecification Other	-0.15	1	1	2 %	14 %
113	Uses Schema feesandcommissionsspecification Other	-0.15	1	1	2 %	14 %
114	Has Form Technology	-0.15	1	1	45 %	74 %
115	LSI Words in Meta Description Tag Relevancy	-0.15	23	10	53 %	84 %
116	Number of Questions In H2 Tags Size	-0.15	2	1	20 %	79 %
117	Flesch Kincaid Reading Grade Level Other	-0.15	4	0	92 %	91 %
118	Variations in Nav Tags Relevancy	-0.15	7034	568	42 %	86 %
119	Has US Phone Number Trust	-0.15	1	1	30 %	74 %
120	Number of CSS Includes Technology	-0.15	14	8	69 %	69 %
121	Number of Sentences Size	-0.15	332	144	79 %	90 %
122	Headings Has Question Other	-0.15	1	1	30 %	84 %
123	Has Canonical URL Authority	-0.15	1	1	67 %	83 %
124	Variation Density in Top 30KB Relevancy	-0.15	310	37	60 %	90 %
125	Uses JSON-LD name	-0.15	1	1	45 %	88 %
126	Uses JSON-LD ProductGroup Other	-0.15	1	1	4 %	14 %
127	Uses Schema productgroup Other	-0.15	1	1	4 %	14 %
128	Leading Variations in H3 Tags Relevancy	-0.15	9	2	18 %	83 %
129	Uses JSON-LD description Other	-0.14	1	1	32 %	81 %
130	Number of US Phone Numbers Trust	-0.14	249	14	30 %	84 %
131	Title Length Size	-0.14	68	47	79 %	71 %
132	Number of Includes Technology	-0.14	38	25	76 %	74 %
133	Percentage of DoFollow External Links Authority	-0.14	20	12	67 %	83 %
134	Uses Schema reviewaspect Other	-0.14	1	1	1 %	16 %
135	Search Result Uses HTTPS Other	-0.14	1	1	82 %	86 %
136	Percentage of DoFollow Internal Links Authority	-0.14	88	66	72 %	88 %
137	Inline CSS Kilobytes Size	-0.14	189	54	60 %	83 %
138	Variations in Button Tags Relevancy	-0.14	5433	258	18 %	88 %
139	Uses JSON-LD reviewAspect Other	-0.14	1	1	1 %	14 %
140	Search Result Summary Length Size	-0.14	157	151	96 %	55 %
141	Exact Matches in H1 Tags Relevancy	-0.14	1	1	18 %	78 %
142	Uses JSON-LD applicableCountry Other	-0.14	1	1	3 %	12 %
143	Uses JSON-LD Organization Other	-0.14	1	1	29 %	84 %
144	Number of Questions In H3 Tags Size	-0.14	4	1	16 %	86 %
145	Variations in Footer Tags Relevancy	-0.14	6817	283	32 %	79 %
146	Uses JSON-LD SeekToAction Other	-0.14	1	1	1 %	14 %
147	Uses Schema seektoaction Other	-0.14	1	1	1 %	14 %
148	Uses Schema offer Other	-0.14	1	1	11 %	47 %
149	Number of Social Accounts Authority	-0.14	8	2	35 %	90 %
150	Variations in Script Tags Relevancy	-0.14	52712	2490	61 %	83 %
151	Variations Making Whole Span Tags Relevancy	-0.14	4	1	19 %	86 %
152	Variations in Article Tags Relevancy	-0.14	3771	153	17 %	84 %
153	Uses JSON-LD priceValidUntil Other	-0.14	1	1	8 %	19 %
154	Meta Description Length Size	-0.14	150	110	63 %	71 %
155	Variations in ID Attributes Relevancy	-0.14	1696	91	24 %	88 %
156	Variations in TITLE Attributes Relevancy	-0.14	1571	52	35 %	78 %
157	Number of NoFollow External Links Authority	-0.14	10	2	12 %	83 %
158	Has Privacy Policy Trust	-0.14	1	1	59 %	74 %
159	Uses JSON-LD ListItem Other	-0.14	1	1	25 %	76 %
160	Word Count in Meta Description Size	-0.14	25	18	63 %	76 %
161	Number of JavaScript Includes Technology	-0.14	29	18	76 %	78 %
162	Uses JSON-LD BreadcrumbList Other	-0.14	1	1	25 %	78 %
163	Meta Description Tag Has Entities Relevancy	-0.13	1	1	58 %	81 %
164	Uses JSON-LD OfferShippingDetails Other	-0.13	1	1	4 %	12 %
165	Search Result Domain Length Size	-0.13	21	16	82 %	83 %
166	Search Result Host Length Size	-0.13	21	16	82 %	83 %
167	Has Meta Viewport Technology	-0.13	1	1	79 %	79 %
168	Uses JSON-LD GeoCoordinates Other	-0.13	1	1	15 %	26 %
169	Uses Schema pricevaliduntil Other	-0.13	1	1	9 %	19 %
170	Variations in Strong Tags Relevancy	-0.13	289	15	22 %	84 %
171	Has Schema Markup Relevancy	-0.13	1	1	58 %	79 %
172	Exact Matches in Top 30KB Relevancy	-0.13	14	2	21 %	84 %
173	Variations in Value Attributes Relevancy	-0.13	151	10	12 %	71 %
174	Uses JSON-LD ShippingDeliveryTime Other	-0.13	1	1	3 %	12 %
175	Number of Absolute URLs Authority	-0.13	586	271	82 %	84 %
176	Uses JSON-LD unitCode Other	-0.13	1	1	4 %	17 %
177	Has OpenGraph Image Relevancy	-0.13	1	1	53 %	78 %
178	Number Of Claimed Brands Other	-0.13	3	2	19 %	81 %
179	Uses JSON-LD jobTitle Other	-0.13	1	1	4 %	45 %
180	Uses Schema url Other	-0.13	1	1	46 %	64 %
181	Is Article Page Other	-0.13	1	1	33 %	72 %
182	Number of Nofollow Links Authority	-0.13	15	5	21 %	88 %
183	Number of LinkedIn Pages Authority	-0.13	8	1	27 %	78 %
184	Variations making whole A Tags Relevancy	-0.13	115	8	28 %	79 %
185	Uses JSON-LD DefinedRegion Other	-0.13	1	1	3 %	12 %
186	Uses Schema organization Other	-0.13	1	1	30 %	84 %
187	Uses JSON-LD ImageObject Other	-0.13	1	1	22 %	72 %
188	Uses Schema aggregaterating Other	-0.13	1	1	8 %	69 %
189	Uses JSON-LD Answer Other	-0.13	1	1	10 %	71 %
190	Page Size Kilobytes Size	-0.13	688	356	81 %	64 %
191	Uses JSON-LD productGroupID Other	-0.13	1	1	4 %	14 %
192	Uses Schema productgroupid Other	-0.13	1	1	4 %	14 %
193	Uses Schema applicablecountry Other	-0.13	1	1	3 %	12 %
194	Uses Schema faqpage Other	-0.13	1	1	10 %	69 %
195	Uses Schema geocoordinates Other	-0.13	1	1	16 %	24 %
196	Uses JSON-LD Place Other	-0.13	1	1	5 %	40 %
197	Uses JSON-LD headline Other	-0.13	1	1	16 %	55 %
198	Percentage of NoFollow Links Authority	-0.13	4	2	18 %	76 %
199	Has Meta Description Relevancy	-0.13	1	1	62 %	76 %
200	Variations in I Tags Relevancy	-0.13	568	30	19 %	83 %

Measures 150519 SEO Factors

148797 Built-In SEO Factors

139595 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous